I started IF in mid March at 235. I’m 70yo male, I do the 16/8 fasting with my two meals being lunch and dinner. For exercise I do a 2 mile walk a day plus work at what ever around the farm. I stay away from sugar now and processed foods and now 8 months later weigh 173. Plus I’m not hungry and don’t feel deprived. 😅
Congratulations! That's been my experience too. Not being hungry is the difference between learning to fast and other diets of just cutting back. Amazing 👍
Hi Dr Fung. Thank you for all the information shared. I was weighing more than 526pounds when I started doing intermittent fasting and came down to 486 pounds. On the 8 of August. I went on a full fasting, today is day 105 of fasting and I am down to 343 pounds. I was never as healthy and is still going strong. My blood pressure medicine doses was halved 3 weeks ago. All my liver, kidney function and other bloodworks are100%. It projects that I will reach 220 pounds in the next 130 odd days. I will break my fast as described in one of your other videos.
That is brilliant you are clearly fat adapted. I was 4 days into a week long fast. My so called friend invited me over and produced scones jam and cream also mega cakes. I ate only 2 scones with jam but it derailed my efforts. I would really need to ban people from coming near me for months sometimes I think people do it deliberately .
I don't think this message will ever get directly to you Dr. Fung, but if it should I would just like to say "Thank you!" I've been intermittent fasting since 28. December 2021 now and have made it from the brink of obesity to the lowest weight I have been since before my memory. I am well in the "normal weight" range now and will soon start changing my fasting window a bit (for maintenance). I would never have made it through the last year and through the falling off the wagon (several times) without your videos/ podcasts. So "Thank you so very much!" 💚 Lots of love from Ireland ☘️
I also have lost 20 kgs in 10 months n HBA1C reduced from 7.2 to 5.2 n I am off all diabetic, blood pressure meds. Thank you Dr. Fung, for me you are my saviour. I did it through low carb n IF 16/8.
@@MyChannel-j3r Good job. However this video (commercial) is very uncharacteristic of your work. Keep up the good job and inspiring people with your simple tools accessible to all.
Dr. Jason Fung. I am from the Philippines. I have already lost more than 30 lbs by watching ur vids and maintaining my one meal a day(ofc with the correct food u taught us to eat) fasting diet. Pls keep us posted! You’re the best.
I have lost 14 kgs since I listened and obsessed to your educating videos.I was on migraine meds,now I'm healthy and continue eating healthy refraining from eating processed foods,sugar and fructose.Consuming fermented vegetables playing a major role.Thank you once again
Thank you Mr Fung I have started IF coupled with zero carb diet over 7 weeks after listening to your video which by the way recommended to me by my own GP after tried multiple tablets to control my T2DM and obesity. I have lost 15 and half kilo in my weight also lost 4 inch on abdominal circumference. I can't thank you enough.
3:30 "Strong correlation" is considered when r>0.75. You can see r=0.264 in the graph, a very weak correlation. You can also easily guess it is weak just by looking at the dots distribution. Of course you know this. I don't think it is a good idea to lose your credibility in commercial videos like this one.
I read the Obesity Code and Ive been watching your videoes. I've been struggling with weight loss for most of my life, 10 years ago I lost 90lbs and then over the next few years it returned. So this time I'm trying the Fasting regimen. I'm 5 weeks in on the 18/6 Regimen, eating a light "low to zero carb" lunch and a portion controlled evening meal. I'm walking 5 miles a day. I've lost 21lbs, in the 5 weeks and I feel amazing. I have another 60lbs to go to reach my ideal weight, and I feel like this time that goal is attainable. Thanks Again
Personally, for me, i needed to stop dieting and make a lifestyle change that was permanent. Also learning to be nicer and gentler with myself help me not crave foods for emotional comfort.
@@lesw3803 lifestyle is how I've approached it now, 6 months in and I'm down 75lbs. Im no longer concerned about weight loss, now I'm just continuing the lifestyle and seeing how where I end up
I have been a follower of Dr. Fung for over two years. While I am not perfect at it I have lost 85 pounds and my A1C has went from 14 to 5.9. I was excited to hear of something that would give you real time validation. I looked into the Lumen but it seems to be more of a service than I would like with automatic recurring payments. It may work but that is just too much for me.
🎯 Key Takeaways for quick navigation: 00:00 🔍 *Understanding body fuel: The body primarily uses glucose (from carbs) or fat as fuel sources, with distinct pathways for each. Burning fat is crucial for weight loss.* 02:08 📊 *Respiratory Quotient (RQ) & weight: Monitoring RQ helps determine if the body burns fat or carbs. An RQ closer to 0.7 indicates fat burning, linked to weight loss.* 04:14 🌀 *Lumen device: Lumen simplifies RQ measurement by analyzing oxygen and carbon dioxide, crucial for understanding if the body is burning fat or carbs.* 06:10 🏀 *Biofeedback & diet: Similar to immediate feedback in sports, knowing if your body burns fat or carbs helps adjust diet for optimal weight loss.* 07:21 ⏱️ *Changing RQ: Adjusting diet or intermittent fasting can shift RQ towards fat burning (0.7), aiding in utilizing body fat for energy.* 08:26 🧠 *Biohacking for weight loss: Understanding body fuel through RQ measurement is key to optimizing weight loss strategies and maintaining weight loss success.*
Thank you Dr Fung for this information’ Also l was diagnosed with Type 2 Diabetes’15 weeks ago. I found you then and in three months my blood work went down 8pts! I am now in or diabetes stage. My goal is to go under that and l will because of you.💜💙Thank you so much!
This device is $400 per year (it requires a subscription), is not as simple as just breathing in and out (you have to enter all your food and exercise), has very poor user reviews, and people report that the customer service is almost non-existent. I'll stick with just fasting.
The data you have to enter isn’t accurate, figures on food packets can be wildly inaccurate so that’s the app recommendations sunk right there. Exercise load is wildly inaccurate so again, the app relies on bullshit to give you, quite remarkably, accurate data! Yeh right. The measurement of CO2 is probably accurate, I’ve no reason to think otherwise but the diet add-on is a waste of time and effort and is inherently flawed. After the first year, the device should be free allowing measurements to be taken if you do not want the bullshit diet advice. Acetone is a much better indicator. The AceTrack device is a one-off payment and has no diet bullshit. Dr Fung here talks about the device and NOT the diet recommendations so technically he’s right and of course he has his reputation to protect but it’s a bit underhand; he should clearly state he is endorsing the device only and not the dietary recommendations.
Afford it go for it, the doctor phone gets paid for promoting this device so it's all good I doubt if anyone who could afford it actually needs to lose weight.
The problem with calories in calories out nonsense is that while you can theoretically always control the calories in you do NOT control the calories out, your body ALWAYS does. If you diet for one week, your metabolism goes down, and it's worse with every week. You have to cut several calories of food to burn one calorie of fat and this always holds true. When you fast, the opposite happens and your metabolism goes up for the first 96 hours due to the release of adrenaline, so you actually burn more fat than the calories of cut food would suggest. Doing 72-96 hour fasts I lost over 100 pounds of fat while gaining muscle at the same time and kept it off. The absolute clowns who talk about calories in calories out such as Greg Doucette and Layne Norton have never done that either for themselves or for one single client or we would hear about it constantly from them. Without PEDs, if you are morbidly obese and follow the advice of these broscientists with degrees in nonsense non science topics, you will just lose muscle. On the other hand guys like Dr. Jason Fung have taken hundreds of patients and gotten them to lose over 100 lbs and keep it off, without surgery or weight loss prescription medicine.
Wow, I wonder how people starve to death then. Yes, a PhD in nutritional science is a "Non-science" topic. Like I said, explain how the drug wegovy works so well by increasing insulin but at the same time decreasing appetite so people eat less. How come their bodies don't slow their calories out to the point where the immediately stop losing weight? I know it is hard to understand, but when you weight less, you are carrying around less mass and have less mass to sustain so you aren't going to need as many calories. You will eventually have to reduce your calories more to lose more weight as your bodyweight goes down. Ever see the show my 600lb life? Does he talk more about them changing their hormones, or does he focus on dramatically reducing their calorie intake? Plus the funniest part is, what do you think fasting is? It is the most extreme form of calorie restriction you can do.
Nutrition is a political degree and there is zero scientific method or mathematics taught, so how are you a scientist if you get one? You're not, to any real scientist. You don't know scientific method, and you don't even have the math to talk about scientific studies. People don't starve to death from lack of calories. You can live on 500-800 calories for your whole life because your body will slow metabolism. You die of malnutrition from lack of vitamins and get conditions like pellagra and beriberi. Especially eating nutritionless foods like white rice which nutritionists love to promote for some reason.
@@LTPottenger If you think that nutritional science is just politics and made up and isn't real at all. Plus that calories apparently are some kind of conspiracy too and you could still be puggy and not lose weight on a true 500-800 calories a day and wouldn't end up looking like Eugenia Cooney at best assuming you could stay alive, I really don't know what to say to that. I can say I would think even Dr. Fung would say that is taking it way too far. This is one I can just leave like it is and let others reading to decide if they truly believe that.
I agree that IF is a great tool and after doing keto + IF for 2 yrs and losing 60lb i really doubt that you were able to build muscle during the fasting, maybe during the feeding period but there is no way to build muscle without eating, personally i lost 23 pounds of muscle during those years. Everything in excess can be harmful even good things and it will be different from person to person, for example I developed Hashimoto during those years but my wife’s thyroid is ok and she followed the same diet. Actually eating more calories in a keto diet + 16/8 IF and weightlifting have helped me to gain 36lb of muscle and now i have 159lb of lean body mass for my height 5’7 thats a lot and during that time have also lost 9% body fat while keeping exactly the same weight for 28 months.
@@mariol8831 dr.jason has already made a video where he explains that the growth hormone is mostly high during the fast period, and that the best way to gain muscle is to train 30 minutes before breaking your fast, and this meal after work out must have good proteins, since it's not the food you eat that make your muscles grow, it is the stress you put on them
Great big thanks, Dr Fung! I agree with every superlative ever said about you, and I owe you & your gang thanks for my own weight loss journey. I wholeheartedly support your mission & message! However, I noticed that the biggest hurdle for me was/is not the actual hunger when fasting. It´s life long habits & emotional hang-ups to food. For me, food in general, and sugar especially, is my comfort blanket and drug of choice. I eat for comfort, for a pick-up, to celebrate, to mourn, etc. Also (and this took me about 45 years to figure out), I am actually afraid of hunger! And I am probably not alone in this. This is scientifically fluffy territory, but I think there would be a public interest if you adressed the emotional impact of fasting. Thanks again for doing thoroughly important work!!!
Yes, it is difficult when you have learnt those eating habits and they persist around you. I receive a lot of weird looks at family gaters if I don't eat the comfort food and honestly, I feel part of the group if I just eat those foods.
I wish it was more within my budget. I'd use it for sure. I've recently started intermittent fasting after first listening to and then reading The Obesity Code. So far, I have lost a bit of weight and even have given up soda and energy drinks which was something I never thought I'd be able to do. Thank you so much for your videos and books.
IF is amazing and I went from 240 to 200 within a few months but I'm also 52 and post menopause. Actually giving up sugary drinks and energy drinks was a big thing for me too so GOOD FOR YOU! I'm also a coffee drinker and just recently started drinking it straight black. I know you didn't ask for any advice but I'd like to give you a little anyway. Try not to get overwhelmed with all the UA-camrs and IF. Remember we are all different so you success will look a little different. And very last, don't give up, listen to your body. I pray you find that you will start feeling amazing very soon, as most people do. God bless you 🙏
Throw in some wim hoff method and cold showers. Mental clarity and cravings are cut even more. Nice work. I love me some " bad " stuff but don't crave it like before. Low carb high saturated fat calms me down.
Congratulations! I believe I have all of Dr Fung's books. Where you liked OC you'll really like Complete Guide to Fasting. I think it was either 75 lbs I lost in 6 months on a 48hr fast, I had supper MWF I was actually never hungry. Again, congratulations!
I just got mine yesterday! I am so excited. I lost 85 pounds and over the course of a year have put 15 back on. Hoping this will help me to get that off and get the rest I want to lose (25) off and stay off!
Dr. Fung you are the best. You helped me lose 60 pounds and my blood pressure is back to normal, my eye floaters are gone and athrisits on my right thumb and right shoulder. Thank you, Dr. Fung. YOU ROCK! Bless your heart!
@@lorygarcia7980 isn’t he awesome! My sister is type 2 diabetes retired nurse from San Francisco and I told her get into intermittent fasting . I’m been doing it for close to two years. I’m on plant based diet. I look sexy now. Lol! I got my old weight back. I don’t even miss food that much. My body react to processed foods. Good luck to you woman! We need to help each other out in this crazy world. ❤️❤️❤️
Heads up, device cannot be returned if the box is opened so if you try it you keep it, also only works with a monthly subscription. The test gives you a reading between 1-5 and offers basic healthy lifestyle suggestions. Most of us know what healthy habits are and could give ourselves a grade between 1-5. Save your money. That being said, I'll continue to follow Dr. Fung whose detailed and understandable videos and books have changed my life.
Q: If I cancel my subscription, can I still use my device? A: Yes, for Lumen devices purchased starting July 30th, 2023, after the cancellation comes into effect you’ll still be able to take unlimited metabolic measurements. However, you won’t have access to the Lumen membership experience, including personalized insights and guidance.
I wish more of these things were affordable. I would love a continous glucous monitor also. But not sick enough to get it through my insurance and can't afford it out right. But great advice either way. I am down 20 lbs just with all your free info and books that I could get from the library. :)
You could instead just use a classic blood glucose meter and measure before and after meals. Not as precise but way cheaper and often enough to maintain weight loss.
@@GBOAC Oh thankyou! I do use a cheap one from walmart. I have for years. And you are correct, it works, I'm just tired of the finger pricking. Also, I don't want to use it forever, I just want to use it for a couple of months and see how my bs are improving, then go back to the finger prick as needed. I have had bs issues for over 20 years, so I know the symptoms.
I already have the lumen Jason. I think it is amazing! It is so handy when you are Intermittent fasting! Perfect. I have my own weight loss channel where I have lost 11 stones (154lbs) by shear hard work...I got sick and tired of struggling and constantly thinking about food! So since watching you and reading Fast Feast Repeat by Gin Stephens ( who mentions you in her book) I am now following an Intermittent Fasting lifestyle and LOVE IT. So thank you so much! ❤️ I truly feel I can actually live life instead of thinking about food and diets!! I am FREEEEE!
@Baxter Using the lumen it showed me when my bodybwas burning fat or carbs for energy. Sometimes ai thought Inwas burning fat but when I blew into my Lumen my body was still burning Carbs for energy so I could tell by what I had eaten that that food took longer to digest. Also when I Was STRESSED, it too showed that I was burning carbs. Its a handy little thing to have. The link is in the description.
This summarizes into following : 1. Take more Dietary Fat like ...Olive oil , Butter 2. Take More Protein 3. Take More Fiber Food 4. Take Bitter Foods 5. Take spice Curcumin To decrease the obesity
I tried Lumen and I found it has a big problem with fasting: it can't tell the difference between ketones and carbs. As soon as you get into ketosis, it thinks you're burning carbs again which you're not. I don't think it's very useful for fasting for this reason. I returned it.
Thank you so much Dr. Fung. I've been followed you since 2016. I heard for the first time about intermittent fasting from You. I'm from Jordan. I used to do only the dry fasting.
Lumen sounds like a fairly accurate way to measure an imprecise metric, the RQ study you shared showed the relationship between RQ and fat metabolism only had an r < 3.
hello doctor! how are you? well, I've been wondering for a while and never understood: why do some people eat a lot of carbs, especially sugar, and do not gain weight? people from my husband family eat a lot of foods rich in sugar, but they don't get fat. Why this happen? Thanks! I love listening to you and learn about health
@@Peckerwood420 yes, I bet it too. I just wanted to understand why that happens, sice sugar stimulates insulin. But I guess It has something to do with the insulin sensitivity, right? I gained 30kg in my pregnancy, and now I've started doing IF and cutted sugar, white flour etc. But my husband ate as much sugar as I did and simply did not get fat. Just as his mother. That blows my mind 😅
Thank you Dr Jason Fung 🙏 for saving my life. A friend gave me The Diabetes Code for the best ever gift.. Dx with a1c 11 five years ago with related T2 complications... stage 2 CKD.. retinopathy with 60 percent vision which were all reversed since after following keto diet with no medication...I lost about 30kgs. A1c now within normal ranges.. thanks so much from Perth Australia.. Found a Dr here who attended your seminars.
I was interested in the device until I went to their store and realized they want an expensive subscription to keep using it. You can't just buy it. You gotta keep giving them lots of money every single month. Too bad a less scummy company didn't invent this device -- hopefully another one will.
I looked into the lumen. Unfortunately, for me at least, it's too expensive--especially because there's a monthly fee after you've bought your equipment and used it for 6 to 12 months.
Hi Dr Fung. I got a Lumen on your recommendation . I think it’s a reasonable price for a medical device. My insurance covers Freestyle Libre glucose monitor so I don’t mind the cost of Lumen although it would help more people if it costs less. I haven’t honestly been disciplined enough but I will keep trying. Of course the diabetes meds made me gain so much weight. Since cancer eats glucose and glutamine I need to do intermittent fasting, less calories, cleaner keto. With immunotherapy my tumor is now the size of a raisin
The less carbs you eat, the less desire for carbs will be present. Wishing you the very best. Replace the words “need to” with “want to” and then to “I am”….. big hugs! You can do this
Lumen since the inception has never upgraded the device. Some say the breathing is difficult with Lumen and requires multiple attempts to get a reading. I wonder if 2.0 will be easier to use, more accurate and possibly measure additional data points such as ketone, etc.
After watching the Lumen video by Dr. Fung I proceeded to place an order for a unit. Only until after I completed the process and ordered a unit did a disclosure appear this is not for diabetics. I had to immediately cancel my order. This was a waste of my time. I watch Dr. Fung's videos often respect his information. I am very disappointed he did not make the disclosure in the video. It's hard for me to believe he was unaware.
Hello Dr .Jason Fung , Gob bless you for the life you’re saving, I started to follow in September and I’m in low carb doing Fasting and OMAD ,it works, I lost 8 kg and my glucose is between 4 & 4.9 mmol in the morning . The question I have is ,after my lunch I feel dizzy from 5.3 mmol ,can you explain me what going on please. Thank you and God bless you
The Lumen device would be awesome, if it was not a subscription model. I categorically refuse to support subscription models that are not offering any additional benefit beyond what could be realized without the subscription (I.E I stream Netflix and continue to get new movies. But with this, I simply keep paying for the right to use it. No thanks.)
@@MyChannel-j3r - A bit, but the bigger issue is being charged money for absolutely no benefit. It's common now, and more and more things are going to this model. It'll fail eventually when people are being hammered for literally every single thing they already own, but for now, our only option is to refuse this model. Anyway, love you book, your content, and your channel!
@@EEEBA1 I do 18-6 hours I eat at 5:00 p.m and my next next meal will next day at 11 A.M. I eat small portion of protein (white fish) sometimes (two boiled eggs) and i purée my vegetables. My purée vegetables is my filler. I boil two cups of any vegetables and I purée and drink it. Two cups of coffee no sugar. You can eat anything that is not processed and no carbs. Eat anything in moderation as long as it’s not processed. I drink water in between . When I’m really hungry I just chew on handful of walnuts. My diet is kinda boring but it worked for me. I quit the bread, pasta, rice, sugar and pop. My sister is diabetic 2 she lost ten pounds already in one week. She started last week Nov. 17, 2022. She was on metformin for eight years and quit cold turkey last week. With metformin, her glucose always around 240ish. Now, that she lost ten pounds , her glucose reading is 160ish. Unbelievable, a humble simple intermittent fasting is healing her diabetes 2. She was also injecting insulin and she quit that , too! Try it! You can do it! Just put healthy food and drink when you break your fast.
i'm one of those people who gains and loses every year, but this time i want to keep it off, so instead of high carb diet, i'm doing high protein, moderate fat. so far, i've noticed i never feel starved like i did on high carb. high carb also tends to be an easy segway for me back to junk food
“Fun facts! There is a 5th fundamental force: chance! It exists in waves and auras around everything in the universe. That’s why you see so many weird coincidences! But it’s strongest in the minds of humans, making our thoughts echo with each other. That’s what we call telepathy/god/collective unconscious. It’s why everyone seems to get variations on the same thoughts/revelations/life paths/dreams. The telegod has gotten stronger in the age of the internet, each mind echoing on so many ideas shared by so many other minds. There is a (painfully obvious!) movement to use these connections to depress/scam/control as many people as possible. This idea is free! Please help us refine it into something of maximum utility!”
Could I suggest a small note on this video? PLEASE highlight that these devices are NOT recommended for Type II diabetics. I have learned so much from your videos over the last 5 yrs and because it has worked well for me, I don't question information from you. THIS would be the exception... I did order it and after going through the process to enrol, that was when it became obvious, it was NOT a good fit for me. Followed by several weeks of dealing with the return process (across the border) and now still waiting for the refund.
I get that it is a biofeedback device but can you explain how we would adapt our fasting/eating in response to this feedback to get better/faster results ?
Thank you for your work. Read a book from you. Your explainations makes totally sense and explains a lot, that I experience. Lost 10gk weight this year with motivation. Afterwards I started to sligthly gaining the weight back. Read your book, and understood everything now whats going on. Back on track now. Ty
I am a diabetic for 2 years now. My sugar was 600 Saturday inspite of taking metformin and regular insulin. My triglycerides were 600 and some change. So I ate only beef butter bacon and eggs the last two days. My sugar is 151 with no medicine tonight. Im not hungry on this new diet i found on the internet. I think i can skip meals easily
73 yr old female..24 hr.Omad just maintains my weight.I am still pre-diabetic so have cut all high carb,all sugar.(I had a thyroidectomy in 2010) I walk every day but still have osteoporosis..I will not take drugs for it.I am adding weight resistance but hear I should be on an alkaline rather than keto regimen???
I'll save y'all a click if you like me prefer to buy versus rent things: Lumen is a subscription based service. There is no way to just get the device and use it. (or maybe there is if you can hack it?). Very disappointed that Dr. Fung for not making that clear...... Hopefully this gets knocked off soon so we can just buy the tech....
Thanks so much for these very informative and eye opening videos. If an overweight person has lots of fat on the body and carb stores, you are not going to burn the fat right away until you burn the carbs offf frst?
I love gadgets, but don't really see the advantage of this method of determining fat burning vs my ketone meter. If it's the non-invasive aspect of it, I think that's offset by the need to tie it to an app. that is tied to a mobile OS and tied to a particular device. I have no control over any particular app's support or its continued suitability for any particular device, OS update, etc.. All I have to worry about with my ketone meter is making sure I replace the batteries when needed. I reversed T2D through the use of my ketone meter.
It's on sale for $199 USD right now (free shipping to Canada) AND even if you don't continue with the sub (it comes with the first month free,) you can still do unlimited measurements it says. It even let me use a discount code for another $30 off so came out to $169.xx USD and no tax (but I believe I'll get charged about $30 or so from Customs, but still, a decent deal!) I'm excited to add this to my arsenal.
I have a lumen and I hate it. They don’t give you enough information. It’s vague. I’m so glad someone in their FB group told me about your book. I read your book and started doing alternative day fasting and it’s been so much better than the Lumen app ever was. I do still breath into it just to see what’s going on with it but their recommendations are not great.
I agree! My lumen constantly tells me I have failed because I eat more fat than carbs. It’s kinda strange how it wants you to eat less fat and expect you to take it seriously. It’s almost like they expect there customer base to be brainwashed sheep that believe what the FDA says about fat being bad.
Interesting video! Having lost 158lbs. by reading your books and watching your videos, I've learned how to eat to burn body fat. Most importantly, I gave up ALL refined carbs and sugars. They just make you crave more refined carbs and sugars...and they are addicting. And I learned how to fast. I love how I feel now. I'm 59 and the results have been amazing. I can certainly see how this tool could be helpful. I'm starting a community outreach program/support group, to share my story and hopefully help others to learn how to fast. We will be reading The Obesity Code and discussing, watching videos and lectures etc. I'll check this out, learn more about it and share with the group that it's available. Thank you for all you do 😊🙏!
@@MyChannel-j3r Thank you so much Dr.Fung. Any thoughts or suggestions for our community group? We have quite an interest already and will begin in January. I will also inform everyone about The Fasting Method. It's my first time organizing something like this 😃👍💪.
@@MyChannel-j3r Please watch my story on The Magic of Fasting UA-cam channel! 😃. Just one of the many thousands of lives you have changed. 🙏. Thanks for all you do
I got a good deal on my lumen. Considering how much food companies charge us for food that makes us fat...I would prefer spending my $$$ with Lumen as they do have more interest in our health versus the giant food companies.
For the price (agree not cheap) I think that I can afford to try for 6 months while I am in the midst of getting started on a fasting schedule. If it is not helpful, I will cancel in 6 months.
Hi Dr. Fung, I am your fans and I enjoy frequent prolonged fasting. Recently, I started to wonder that if I have hypothyroidism, can I still do prolonged fasting? Thank you!
Is there peer-reviewed data with this actual device and sustained weight loss? It would appear to be a great tool, but in the real world, with real people and real diets, does this actually make a difference? The device requires a regular subscription fee and I wish you would have spoken to what is expected of consumers when purchasing this product.
Really! A correlation of r=.264 is not a very high correlation. I lose a little faith in Dr. Fung when he starts trying to sell us gadgets. That being said, I have lost almost 150 lbs over the last 18 months without paying for any services or buying any gadgets.
Looks interesting and I appreciate the info, but I'm not a big fan of subscriptions. I could certainly see this device being helpful for those trying to verify their keto diet. Folks doing a daily time restricted diet could use this to fine tune their eating periods. But for someone who is fasting, I'm not sure what extra or useful information this could provide.
I found the subscription plan totally confusing. It's a device so why is an app needed? Can't it just have an LED readout that tells you the Respiratory Quotient?
Can keto test strips or a ketone breath analyzer be utilized for those who are unable to afford lumen? Are they just as effective because they also provide immediate feedback to the user? Your videos are incredibly informative and helpful. Thank you for providing zero cost information to consumers👍
Exactly my thoughts. I have a Ketone meter. All I need to know if I am burning fat. Fung was paid well for this collaboration no doubt. Far too expensive gadget.
Ketones don’t come into the equation until you are running fully on fat plus gluconeogenesis aka ketosis. and thus you need to bring carb intake low enough to bring out the ketones. while with respiratory quotient it also works in non ketogenic scenarios.
You don't need any device! Eating well and low- or zero-carb is FREE! Fasting is FREE! Staying active is FREE! Yes, all this information would be nice, but you don't need it. Just eat right and fast and enjoy the ride!
I had such great appreciation for every posts from Dr Fung, but endorsing this product is such a loss of credibility. Honestly, when you did the right thing to lose fat, you kind of feel it pretty well. Plus, a nice purple keto stick provides the confirmation we are burning fat for a very low cost.
Hi Dr. F, I thank God for you, i started IF coz of you ❤ … i would like to know if my sister who is a two time Kidney transplant patient is doing IF .. is it ok for her to do so ? Or will it hurt her new kidney ? Thank you very much for your reply … More power to you Dr. F ❤
Dr Fung, hi! How does this correlate to measuring ketones? I have a weird situation. I am successfully in a 20/4 IF . I am solidly in ketosis. Daily carb load is easily under 25g. I measure ketones and they alternate between .8 and ~2.5 daily. My weight lose have been pathetic at ~ 1.5 lbs/wk. My glucose alters too from mid 80s to 113ish. I'm stymied! I should also add I do 45min of elliptical/ day.
That chart didn’t look like it was demonstrating a particularly strong correlation between RQ and delta weight. I understand that software can provide a curve or trend line for any data set, but that looked questionable. Also, how do we differentiate between cause and effect?
was also thinking of that, would we be able to see if we are in zone 2, there is a lot of endorsment for this product, but on the same time very little encouragment from real people who are using it
I wonder if the Lumen folks are paying attention to these comments? I would buy one in a heartbeat if I could just buy the device outright. But I simply won't do any more subscriptions, there are too many of those already.
I bought the Lumen but it did not seem to provide readings that reflected what I was consuming. The meal plan seems overly complicated and suggested "balanced meals," which is what got us all in this mess. The group chat featured a lot of very upset and confused participants who were all tangled up in macros and calories. Food should be fun and not a math test. It probably works for extreme athletes. I will send it back but I appreciate the suggestion.
I love you Jason, but no, not spruiking for Lumen,. I may come back and change my mind, so there's that. Also, you have helped me improve my health, and I haven't paid you anything for that, so when I come back, i will look for ways to do that.
Dr. I am in Perimenopause and weight lose is difficult and extremely slow. I keep losing and gaining the same 20 lbs. never getting beyond it. Im 220 lbs Insulin resistant. I’ve fasted 14 days lost 20 lbs to 200. 10 days later gained almost all back. No extreme diet changes. Idk😢 please advise.
Oh goodness I did the same thing until I went on full carnivore. Unbelievable changes I kept eating the wrong things coming off of a fast forever after, I kept sabotaging what I had gained with the fasting . I realize that I had to get rid of the sugar and the carbs and that is so key. And with carnivore it is no sugar no carbs and no cheating. To be able to get the results that you want and to keep the weight off. my blood sugars are normal now my blood pressure is normal now my cholesterol is in a good spot, energy sleep good. Watch Dr. Fung’s videos on it, Dr ken Berry and Kelly Hogan is a really good influencer for the carnivore diet It’s hard to make the switch but well worth it, I just always keep in my mind that this is for my health and that I want to feel better and not have my arthritis hurt all through my body. And that has decreased 90%. But I am a strict carnivore to achieve this. Beef butter salt and water and I still do two coffees a day It’s so easy, it Has to be that your focus is not on food, it’s on the nutrition for your body and what is best. That’s what I have to keep in my mind and it is working and it has been 7 months Good luck and I wish you well
Requires a subscription of $25/mo in order to work!?!?… is like charging a subscription to use a glucose meter. The device should be able to work subscription-free and if you want or need the app to coach you then you subscribe to the app
@@MyChannel-j3r i know and thank you for always sharing new ways to lose weight, i lost 60lb thanks to keto and your intermittent fasting book. Hopefully in the future the company provide a way to buy the device and separate its functionality from the app subscription.
The cost wouldn't be so bad up front if you didn't have to pay a monthly/yearly fee to use it. I've never seen a subscription for an app that pricey. I would more likely purchase if it came without a subscription. I suppose I will need to stick to not knowing what I am burning for fuel for now. Thanks for the video.
See the comment above about lack of strong correlation: I don’t think you will be missing anything but not buying this advice. I have had a lot of respect for Dr Fung over the years, but I’m afraid he’s not done his due diligence with this product.
I would like to hear about stearic acid. There is a study I heard with people taking banana shakes and stearic acid. The stearic acid group had increased mitochondria activity and preference towards fat burning.
Was it produced by the Banana Marketing Board? Bananas are laden with sugar, I respectfully suggest you would be healthier to gain your stearic acid from fatty beef and pork, however if you really seek to twist the dietary advice it's also added to many types of chocolate for mouth-feel so just ignore the insulin spike while you dream of a juicy steak. 🍫
Learn more about the Lumen (Use promo code: DRFUNG for $50 off): www.lumen.me/shop-drfung?inf_id=9098&discount=drfung
I started IF in mid March at 235. I’m 70yo male, I do the 16/8 fasting with my two meals being lunch and dinner. For exercise I do a 2 mile walk a day plus work at what ever around the farm. I stay away from sugar now and processed foods and now 8 months later weigh 173. Plus I’m not hungry and don’t feel deprived. 😅
Congratulations! That's been my experience too. Not being hungry is the difference between learning to fast and other diets of just cutting back. Amazing 👍
Good for you, that's wonderful 👏
52lbs wow
I’m actually proud of you! We aren’t too old to change!!
Does that mean you are not buying the 300$/yr subscription for what this video is selling?
Good job!
Hi Dr Fung. Thank you for all the information shared. I was weighing more than 526pounds when I started doing intermittent fasting and came down to 486 pounds. On the 8 of August.
I went on a full fasting, today is day 105 of fasting and I am down to 343 pounds. I was never as healthy and is still going strong. My blood pressure medicine doses was halved 3 weeks ago.
All my liver, kidney function and other bloodworks are100%. It projects that I will reach 220 pounds in the next 130 odd days. I will break my fast as described in one of your other videos.
What type of fast have you been doing for 105 days? Full fast nothing but water?
@@Iam1uglyguy Only water. I do take a daily multi vitamin. Magnesium, Calcium, B12.
Congratulations. What a wonderful accomplishment. Keep up the good work.
That is brilliant you are clearly fat adapted. I was 4 days into a week long fast.
My so called friend invited me over and produced scones jam and cream also mega cakes.
I ate only 2 scones with jam but it derailed my efforts.
I would really need to ban people from coming near me for months sometimes I think people do it deliberately .
@@yourlifecoza Sodium, too, I hope.
I don't think this message will ever get directly to you Dr. Fung, but if it should I would just like to say "Thank you!"
I've been intermittent fasting since 28. December 2021 now and have made it from the brink of obesity to the lowest weight I have been since before my memory. I am well in the "normal weight" range now and will soon start changing my fasting window a bit (for maintenance).
I would never have made it through the last year and through the falling off the wagon (several times) without your videos/ podcasts. So "Thank you so very much!" 💚 Lots of love from Ireland ☘️
I lost 26 kg since listening to you. Thanks
Great job!
I also have lost 20 kgs in 10 months n HBA1C reduced from 7.2 to 5.2 n I am off all diabetic, blood pressure meds. Thank you Dr. Fung, for me you are my saviour. I did it through low carb n IF 16/8.
@@MyChannel-j3r Good job. However this video (commercial) is very uncharacteristic of your work. Keep up the good job and inspiring people with your simple tools accessible to all.
Dr. Jason Fung. I am from the Philippines. I have already lost more than 30 lbs by watching ur vids and maintaining my one meal a day(ofc with the correct food u taught us to eat) fasting diet. Pls keep us posted! You’re the best.
There are cheaper devices that work too. Look for breathalyzer devices for testing how much alcohol you have in your body
I have lost 14 kgs since I listened and obsessed to your educating videos.I was on migraine meds,now I'm healthy and continue eating healthy refraining from eating processed foods,sugar and fructose.Consuming fermented vegetables playing a major role.Thank you once again
Thank you Mr Fung I have started IF coupled with zero carb diet over 7 weeks after listening to your video which by the way recommended to me by my own GP after tried multiple tablets to control my T2DM and obesity. I have lost 15 and half kilo in my weight also lost 4 inch on abdominal circumference. I can't thank you enough.
3:30 "Strong correlation" is considered when r>0.75. You can see r=0.264 in the graph, a very weak correlation. You can also easily guess it is weak just by looking at the dots distribution. Of course you know this.
I don't think it is a good idea to lose your credibility in commercial videos like this one.
I think the Lumen device is innovative and useful.
Exactly! It was unfortunate to hear the doctor makes this mistake but hopefully he corrects it because this is definitely not a strong correlation!
@@MyChannel-j3r It might be innovative but the stats you are presenting here do not really show its usefulness… Sad😢
Thanks doc, R=0.26 suggests weight is lost without expensive gadgets for 74%
@@OxlTlxO In fact the coefficient of determination is r^2=0.07, so a not so impressive 7% of the weight loss is predicted by that gadget.
I read the Obesity Code and Ive been watching your videoes.
I've been struggling with weight loss for most of my life, 10 years ago I lost 90lbs and then over the next few years it returned.
So this time I'm trying the Fasting regimen.
I'm 5 weeks in on the 18/6 Regimen, eating a light "low to zero carb" lunch and a portion controlled evening meal.
I'm walking 5 miles a day.
I've lost 21lbs, in the 5 weeks and I feel amazing. I have another 60lbs to go to reach my ideal weight, and I feel like this time that goal is attainable.
Thanks Again
36-96 h fasts won't slow metabolism 16:8 is mainly for maintenance
I am now 12 weeks in and I'm down 50lbs!
Personally, for me, i needed to stop dieting and make a lifestyle change that was permanent. Also learning to be nicer and gentler with myself help me not crave foods for emotional comfort.
@@lesw3803 lifestyle is how I've approached it now, 6 months in and I'm down 75lbs.
Im no longer concerned about weight loss, now I'm just continuing the lifestyle and seeing how where I end up
Started TRF and LCHF Oct 1, 2022, today it’s Nov 23, 2022, already lost 18 lbs, no exercise. Thanks Dr. Jason Fung❤
What's TRF I'm new to fasting?
@@Silverlady55 Time Restricted Feeding
I have been a follower of Dr. Fung for over two years. While I am not perfect at it I have lost 85 pounds and my A1C has went from 14 to 5.9. I was excited to hear of something that would give you real time validation. I looked into the Lumen but it seems to be more of a service than I would like with automatic recurring payments. It may work but that is just too much for me.
🎯 Key Takeaways for quick navigation:
00:00 🔍 *Understanding body fuel: The body primarily uses glucose (from carbs) or fat as fuel sources, with distinct pathways for each. Burning fat is crucial for weight loss.*
02:08 📊 *Respiratory Quotient (RQ) & weight: Monitoring RQ helps determine if the body burns fat or carbs. An RQ closer to 0.7 indicates fat burning, linked to weight loss.*
04:14 🌀 *Lumen device: Lumen simplifies RQ measurement by analyzing oxygen and carbon dioxide, crucial for understanding if the body is burning fat or carbs.*
06:10 🏀 *Biofeedback & diet: Similar to immediate feedback in sports, knowing if your body burns fat or carbs helps adjust diet for optimal weight loss.*
07:21 ⏱️ *Changing RQ: Adjusting diet or intermittent fasting can shift RQ towards fat burning (0.7), aiding in utilizing body fat for energy.*
08:26 🧠 *Biohacking for weight loss: Understanding body fuel through RQ measurement is key to optimizing weight loss strategies and maintaining weight loss success.*
Thank you Dr Fung for this information’ Also l was diagnosed with Type 2 Diabetes’15 weeks ago. I found you then and in three months my blood work went down 8pts! I am now in or diabetes stage. My goal is to go under that and l will because of you.💜💙Thank you so much!
Thanks!
This device is $400 per year (it requires a subscription), is not as simple as just breathing in and out (you have to enter all your food and exercise), has very poor user reviews, and people report that the customer service is almost non-existent. I'll stick with just fasting.
Since it is an "app" who knows what they are doing with your data.
The data you have to enter isn’t accurate, figures on food packets can be wildly inaccurate so that’s the app recommendations sunk right there. Exercise load is wildly inaccurate so again, the app relies on bullshit to give you, quite remarkably, accurate data! Yeh right.
The measurement of CO2 is probably accurate, I’ve no reason to think otherwise but the diet add-on is a waste of time and effort and is inherently flawed.
After the first year, the device should be free allowing measurements to be taken if you do not want the bullshit diet advice.
Acetone is a much better indicator. The AceTrack device is a one-off payment and has no diet bullshit.
Dr Fung here talks about the device and NOT the diet recommendations so technically he’s right and of course he has his reputation to protect but it’s a bit underhand; he should clearly state he is endorsing the device only and not the dietary recommendations.
Afford it go for it, the doctor phone gets paid for promoting this device so it's all good I doubt if anyone who could afford it actually needs to lose weight.
Good feedback. Thanks
@@susanstewart1402
I'm sure many will pay big bucks to get data on how you breathe in and out 😅😅😅
The problem with calories in calories out nonsense is that while you can theoretically always control the calories in you do NOT control the calories out, your body ALWAYS does. If you diet for one week, your metabolism goes down, and it's worse with every week. You have to cut several calories of food to burn one calorie of fat and this always holds true. When you fast, the opposite happens and your metabolism goes up for the first 96 hours due to the release of adrenaline, so you actually burn more fat than the calories of cut food would suggest. Doing 72-96 hour fasts I lost over 100 pounds of fat while gaining muscle at the same time and kept it off. The absolute clowns who talk about calories in calories out such as Greg Doucette and Layne Norton have never done that either for themselves or for one single client or we would hear about it constantly from them. Without PEDs, if you are morbidly obese and follow the advice of these broscientists with degrees in nonsense non science topics, you will just lose muscle. On the other hand guys like Dr. Jason Fung have taken hundreds of patients and gotten them to lose over 100 lbs and keep it off, without surgery or weight loss prescription medicine.
Wow, I wonder how people starve to death then. Yes, a PhD in nutritional science is a "Non-science" topic. Like I said, explain how the drug wegovy works so well by increasing insulin but at the same time decreasing appetite so people eat less. How come their bodies don't slow their calories out to the point where the immediately stop losing weight? I know it is hard to understand, but when you weight less, you are carrying around less mass and have less mass to sustain so you aren't going to need as many calories. You will eventually have to reduce your calories more to lose more weight as your bodyweight goes down. Ever see the show my 600lb life? Does he talk more about them changing their hormones, or does he focus on dramatically reducing their calorie intake? Plus the funniest part is, what do you think fasting is? It is the most extreme form of calorie restriction you can do.
Nutrition is a political degree and there is zero scientific method or mathematics taught, so how are you a scientist if you get one? You're not, to any real scientist. You don't know scientific method, and you don't even have the math to talk about scientific studies. People don't starve to death from lack of calories. You can live on 500-800 calories for your whole life because your body will slow metabolism. You die of malnutrition from lack of vitamins and get conditions like pellagra and beriberi. Especially eating nutritionless foods like white rice which nutritionists love to promote for some reason.
@@LTPottenger If you think that nutritional science is just politics and made up and isn't real at all. Plus that calories apparently are some kind of conspiracy too and you could still be puggy and not lose weight on a true 500-800 calories a day and wouldn't end up looking like Eugenia Cooney at best assuming you could stay alive, I really don't know what to say to that. I can say I would think even Dr. Fung would say that is taking it way too far.
This is one I can just leave like it is and let others reading to decide if they truly believe that.
I agree that IF is a great tool and after doing keto + IF for 2 yrs and losing 60lb i really doubt that you were able to build muscle during the fasting, maybe during the feeding period but there is no way to build muscle without eating, personally i lost 23 pounds of muscle during those years. Everything in excess can be harmful even good things and it will be different from person to person, for example I developed Hashimoto during those years but my wife’s thyroid is ok and she followed the same diet.
Actually eating more calories in a keto diet + 16/8 IF and weightlifting have helped me to gain 36lb of muscle and now i have 159lb of lean body mass for my height 5’7 thats a lot and during that time have also lost 9% body fat while keeping exactly the same weight for 28 months.
@@mariol8831 dr.jason has already made a video where he explains that the growth hormone is mostly high during the fast period, and that the best way to gain muscle is to train 30 minutes before breaking your fast, and this meal after work out must have good proteins, since it's not the food you eat that make your muscles grow, it is the stress you put on them
I'd buy it, if it was for sale. But I refuse to rent it. Get rid of the subscription service.
I agree. It can be pricey.
Great big thanks, Dr Fung!
I agree with every superlative ever said about you, and I owe you & your gang thanks for my own weight loss journey. I wholeheartedly support your mission & message!
However, I noticed that the biggest hurdle for me was/is not the actual hunger when fasting. It´s life long habits & emotional hang-ups to food. For me, food in general, and sugar especially, is my comfort blanket and drug of choice. I eat for comfort, for a pick-up, to celebrate, to mourn, etc. Also (and this took me about 45 years to figure out), I am actually afraid of hunger! And I am probably not alone in this.
This is scientifically fluffy territory, but I think there would be a public interest if you adressed the emotional impact of fasting.
Thanks again for doing thoroughly important work!!!
Yes, it is difficult when you have learnt those eating habits and they persist around you. I receive a lot of weird looks at family gaters if I don't eat the comfort food and honestly, I feel part of the group if I just eat those foods.
Yes please address the habit side of fasting
I wish it was more within my budget. I'd use it for sure. I've recently started intermittent fasting after first listening to and then reading The Obesity Code. So far, I have lost a bit of weight and even have given up soda and energy drinks which was something I never thought I'd be able to do. Thank you so much for your videos and books.
IF is amazing and I went from 240 to 200 within a few months but I'm also 52 and post menopause. Actually giving up sugary drinks and energy drinks was a big thing for me too so GOOD FOR YOU! I'm also a coffee drinker and just recently started drinking it straight black. I know you didn't ask for any advice but I'd like to give you a little anyway. Try not to get overwhelmed with all the UA-camrs and IF. Remember we are all different so you success will look a little different. And very last, don't give up, listen to your body. I pray you find that you will start feeling amazing very soon, as most people do. God bless you 🙏
I agree, it can be pricey. I just present it as an option for those who can afford it.
Throw in some wim hoff method and cold showers. Mental clarity and cravings are cut even more. Nice work.
I love me some " bad " stuff but don't crave it like before. Low carb high saturated fat calms me down.
@@MyChannel-j3r it sounds like it’s for keto
Congratulations! I believe I have all of Dr Fung's books. Where you liked OC you'll really like Complete Guide to Fasting. I think it was either 75 lbs I lost in 6 months on a 48hr fast, I had supper MWF I was actually never hungry. Again, congratulations!
I just got mine yesterday! I am so excited. I lost 85 pounds and over the course of a year have put 15 back on. Hoping this will help me to get that off and get the rest I want to lose (25) off and stay off!
Dr. Fung you are the best. You helped me lose 60 pounds and my blood pressure is back to normal, my eye floaters are gone and athrisits on my right thumb and right shoulder. Thank you, Dr. Fung. YOU ROCK! Bless your heart!
I lost around the same amount of weight too. And now that you mention the eye floaters, mine are gone as well. This just dawned on me. 😂
@@lorygarcia7980 isn’t he awesome! My sister is type 2 diabetes retired nurse from San Francisco and I told her get into intermittent fasting . I’m been doing it for close to two years. I’m on plant based diet. I look sexy now. Lol! I got my old weight back. I don’t even miss food that much. My body react to processed foods. Good luck to you woman! We need to help each other out in this crazy world. ❤️❤️❤️
Love my Lumen! Down 7lbs in two weeks. Great bio feedback tool. Thank you 🙏🏽 for recommending it.
Heads up, device cannot be returned if the box is opened so if you try it you keep it, also only works with a monthly subscription. The test gives you a reading between 1-5 and offers basic healthy lifestyle suggestions. Most of us know what healthy habits are and could give ourselves a grade between 1-5. Save your money.
That being said, I'll continue to follow Dr. Fung whose detailed and understandable videos and books have changed my life.
Q: If I cancel my subscription, can I still use my device?
A: Yes, for Lumen devices purchased starting July 30th, 2023, after the cancellation comes into effect you’ll still be able to take unlimited metabolic measurements. However, you won’t have access to the Lumen membership experience, including personalized insights and guidance.
I wish more of these things were affordable. I would love a continous glucous monitor also. But not sick enough to get it through my insurance and can't afford it out right. But great advice either way. I am down 20 lbs just with all your free info and books that I could get from the library. :)
You could instead just use a classic blood glucose meter and measure before and after meals. Not as precise but way cheaper and often enough to maintain weight loss.
@@GBOAC Oh thankyou! I do use a cheap one from walmart. I have for years. And you are correct, it works, I'm just tired of the finger pricking. Also, I don't want to use it forever, I just want to use it for a couple of months and see how my bs are improving, then go back to the finger prick as needed. I have had bs issues for over 20 years, so I know the symptoms.
I already have the lumen Jason. I think it is amazing! It is so handy when you are Intermittent fasting! Perfect. I have my own weight loss channel where I have lost 11 stones (154lbs) by shear hard work...I got sick and tired of struggling and constantly thinking about food! So since watching you and reading Fast Feast Repeat by Gin Stephens ( who mentions you in her book) I am now following an Intermittent Fasting lifestyle and LOVE IT. So thank you so much! ❤️ I truly feel I can actually live life instead of thinking about food and diets!! I am FREEEEE!
What did you learn from lumen?
Where can I purchase lunem please
@Baxter Using the lumen it showed me when my bodybwas burning fat or carbs for energy. Sometimes ai thought Inwas burning fat but when I blew into my Lumen my body was still burning Carbs for energy so I could tell by what I had eaten that that food took longer to digest. Also when I Was STRESSED, it too showed that I was burning carbs. Its a handy little thing to have. The link is in the description.
@@emmabright1602 if you read Jason's Discription there is a link where you can purchase.
This summarizes into following :
1. Take more Dietary Fat like ...Olive oil , Butter
2. Take More Protein
3. Take More Fiber Food
4. Take Bitter Foods
5. Take spice Curcumin
To decrease the obesity
I can't imagine paying 250 for a device and then $25/month for an app that displays the device's results.
There is no charge for the device. You pay for 6 months or one year. I just paid $238 (with the $50 discount from this video) for one year.
@@bb57nychow do you get it?
@@bb57nyc it is useless. Let's be real.
This video was great but like most of us, we can't afford it right now in today's economy 😏 So I guess the real answer is....avoid carbs🤷♀️
Dr. Fung, you've really helped me and many others. Really appreciate your work.
I tried Lumen and I found it has a big problem with fasting: it can't tell the difference between ketones and carbs. As soon as you get into ketosis, it thinks you're burning carbs again which you're not. I don't think it's very useful for fasting for this reason. I returned it.
How did you return it? They have a no return policy if the box is open?
I did it back in January 2023. It looks like their policy has changed since then.
Thank you so much Dr. Fung. I've been followed you since 2016. I heard for the first time about intermittent fasting from You. I'm from Jordan. I used to do only the dry fasting.
Lumen sounds like a fairly accurate way to measure an imprecise metric, the RQ study you shared showed the relationship between RQ and fat metabolism only had an r < 3.
hello doctor! how are you? well, I've been wondering for a while and never understood: why do some people eat a lot of carbs, especially sugar, and do not gain weight? people from my husband family eat a lot of foods rich in sugar, but they don't get fat. Why this happen? Thanks! I love listening to you and learn about health
We are all different, so we have to find what works for us.
May not be getting fat on the outside, but I bet they’re fat around the organs
@@Peckerwood420 yes, I bet it too. I just wanted to understand why that happens, sice sugar stimulates insulin. But I guess It has something to do with the insulin sensitivity, right? I gained 30kg in my pregnancy, and now I've started doing IF and cutted sugar, white flour etc. But my husband ate as much sugar as I did and simply did not get fat. Just as his mother. That blows my mind 😅
@@lorelayne14 sounds like the have crazy good metabolism to me 😁
@@maryfolks9368 I wish I had it too 😅😅😅
I always love your analogies like shooting a basketball to monitor your metabolism. I ways hit thumbs before completely watching. Thanks 🙏💪
Thanks!
Thank you Dr Jason Fung 🙏 for saving my life. A friend gave me The Diabetes Code for the best ever gift.. Dx with a1c 11 five years ago with related T2 complications... stage 2 CKD.. retinopathy with 60 percent vision which were all reversed since after following keto diet with no medication...I lost about 30kgs. A1c now within normal ranges.. thanks so much from Perth Australia.. Found a Dr here who attended your seminars.
And your CKD?
@@epicurean1868 reversed after 6 months on ketogenic diet... Full kidney function ever since then to now
@@lyndixie2033
👍💪🍀😁
Thank you dear dr. Fung 🙏 you're the BEST! ❤
I was interested in the device until I went to their store and realized they want an expensive subscription to keep using it. You can't just buy it. You gotta keep giving them lots of money every single month. Too bad a less scummy company didn't invent this device -- hopefully another one will.
I looked into the lumen. Unfortunately, for me at least, it's too expensive--especially because there's a monthly fee after you've bought your equipment and used it for 6 to 12 months.
Hi Dr Fung. I got a Lumen on your recommendation . I think it’s a reasonable price for a medical device. My insurance covers Freestyle Libre glucose monitor so I don’t mind the cost of Lumen although it would help more people if it costs less. I haven’t honestly been disciplined enough but I will keep trying. Of course the diabetes meds made me gain so much weight. Since cancer eats glucose and glutamine I need to do intermittent fasting, less calories, cleaner keto. With immunotherapy my tumor is now the size of a raisin
The less carbs you eat, the less desire for carbs will be present. Wishing you the very best. Replace the words “need to” with “want to” and then to “I am”….. big hugs! You can do this
Lumen since the inception has never upgraded the device. Some say the breathing is difficult with Lumen and requires multiple attempts to get a reading. I wonder if 2.0 will be easier to use, more accurate and possibly measure additional data points such as ketone, etc.
Looking at the graph of the video between the respiratory quotient and lose weight @4:00, there is absolutely no correlation, just a cloud of points
You can find in the cloud of points people having low respiratory quotient gaining a lot of weight as well. What he is saying is rubbish
3:00 a correlation with an r value of 0.26 is a weak correlation, not a strong one, as is obvious just by looking at the scatter on the plot.
After watching the Lumen video by Dr. Fung I proceeded to place an order for a unit. Only until after I completed the process and ordered a unit did a disclosure appear this is not for diabetics. I had to immediately cancel my order. This was a waste of my time. I watch Dr. Fung's videos often respect his information. I am very disappointed he did not make the disclosure in the video. It's hard for me to believe he was unaware.
Hello Dr .Jason Fung , Gob bless you for the life you’re saving, I started to follow in September and I’m in low carb doing Fasting and OMAD ,it works, I lost 8 kg and my glucose is between 4 & 4.9 mmol in the morning . The question I have is ,after my lunch I feel dizzy from 5.3 mmol ,can you explain me what going on please. Thank you and God bless you
Ty Dr Fung but I’m very disappointed that there is a subscription service. This is ridiculous. And I think will hurt their entry
I agree, but I have no input on that.
@@MyChannel-j3r you are great. Read both your books and have gifted them as well. Be well
The Lumen device would be awesome, if it was not a subscription model. I categorically refuse to support subscription models that are not offering any additional benefit beyond what could be realized without the subscription (I.E I stream Netflix and continue to get new movies. But with this, I simply keep paying for the right to use it. No thanks.)
I hear you. It can be pricey.
@@MyChannel-j3r - A bit, but the bigger issue is being charged money for absolutely no benefit. It's common now, and more and more things are going to this model. It'll fail eventually when people are being hammered for literally every single thing they already own, but for now, our only option is to refuse this model. Anyway, love you book, your content, and your channel!
Thank you for this. Thank you for all your work. ❤
Sounds like a great device . Novel prize to the person who conjures up a simple device like that for measuring fasting insulin ✌️
Thank you Dr. Fung because of you I’m a lot healthier. I lost sixty pounds doing intermittent fasting.
That's great, congrats. What do you eat when you eat? I have been doing OMAD for a few years with zero success.
@@EEEBA1 I do 18-6 hours I eat at 5:00 p.m and my next next meal will next day at 11 A.M. I eat small portion of protein (white fish) sometimes (two boiled eggs) and i purée my vegetables. My purée vegetables is my filler. I boil two cups of any vegetables and I purée and drink it. Two cups of coffee no sugar. You can eat anything that is not processed and no carbs. Eat anything in moderation as long as it’s not processed. I drink water in between . When I’m really hungry I just chew on handful of walnuts. My diet is kinda boring but it worked for me. I quit the bread, pasta, rice, sugar and pop. My sister is diabetic 2 she lost ten pounds already in one week. She started last week Nov. 17, 2022. She was on metformin for eight years and quit cold turkey last week. With metformin, her glucose always around 240ish. Now, that she lost ten pounds , her glucose reading is 160ish. Unbelievable, a humble simple intermittent fasting is healing her diabetes 2. She was also injecting insulin and she quit that , too! Try it! You can do it! Just put healthy food and drink when you break your fast.
@@GraceDollesin Thank you for responding. I will try that strategy. And I'm happy for your sister, that's great news.
@@EEEBA1 ❤️❤️❤️
i'm one of those people who gains and loses every year, but this time i want to keep it off, so instead of high carb diet, i'm doing high protein, moderate fat. so far, i've noticed i never feel starved like i did on high carb. high carb also tends to be an easy segway for me back to junk food
“Fun facts! There is a 5th fundamental force: chance! It exists in waves and auras around everything in the universe. That’s why you see so many weird coincidences! But it’s strongest in the minds of humans, making our thoughts echo with each other. That’s what we call telepathy/god/collective unconscious. It’s why everyone seems to get variations on the same thoughts/revelations/life paths/dreams. The telegod has gotten stronger in the age of the internet, each mind echoing on so many ideas shared by so many other minds. There is a (painfully obvious!) movement to use these connections to depress/scam/control as many people as possible. This idea is free! Please help us refine it into something of maximum utility!”
Love it! You made my day.
Could I suggest a small note on this video? PLEASE highlight that these devices are NOT recommended for Type II diabetics. I have learned so much from your videos over the last 5 yrs and because it has worked well for me, I don't question information from you. THIS would be the exception... I did order it and after going through the process to enrol, that was when it became obvious, it was NOT a good fit for me. Followed by several weeks of dealing with the return process (across the border) and now still waiting for the refund.
I get that it is a biofeedback device but can you explain how we would adapt our fasting/eating in response to this feedback to get better/faster results ?
doctor you should be the one getting a noble prize ❤
Thank you for your work. Read a book from you. Your explainations makes totally sense and explains a lot, that I experience.
Lost 10gk weight this year with motivation. Afterwards I started to sligthly gaining the weight back. Read your book, and understood everything now whats going on. Back on track now. Ty
Thanks!
Hi Dr Fung. Please make a video on what u eat in a day
I am a diabetic for 2 years now. My sugar was 600 Saturday inspite of taking metformin and regular insulin. My triglycerides were 600 and some change. So
I ate only beef butter bacon and eggs the last two days. My sugar is 151 with no medicine tonight. Im not hungry on this new diet i found on the internet. I think i can skip meals easily
Carnivore Diet :)
Didn't know that by practicing KETO I'm also saving the planet by reducing my carbon footprint. Always learning new things from Doctor.
You have really helped me in this journey
Can u just buy the device without having to sign up for a monthly pkan, etc?
73 yr old female..24 hr.Omad just maintains my weight.I am still pre-diabetic so have cut all high carb,all sugar.(I had a thyroidectomy in 2010) I walk every day but still have osteoporosis..I will not take drugs for it.I am adding weight resistance but hear I should be on an alkaline rather than keto regimen???
I'll save y'all a click if you like me prefer to buy versus rent things: Lumen is a subscription based service. There is no way to just get the device and use it. (or maybe there is if you can hack it?). Very disappointed that Dr. Fung for not making that clear...... Hopefully this gets knocked off soon so we can just buy the tech....
How much !!! Jason I am surprised that your recommending this, Please don't start becoming a witch doctor.
Thanks so much for these very informative and eye opening videos. If an overweight person has lots of fat on the body and carb stores, you are not going to burn the fat right away until you burn the carbs offf frst?
I love gadgets, but don't really see the advantage of this method of determining fat burning vs my ketone meter. If it's the non-invasive aspect of it, I think that's offset by the need to tie it to an app. that is tied to a mobile OS and tied to a particular device. I have no control over any particular app's support or its continued suitability for any particular device, OS update, etc.. All I have to worry about with my ketone meter is making sure I replace the batteries when needed. I reversed T2D through the use of my ketone meter.
It's on sale for $199 USD right now (free shipping to Canada) AND even if you don't continue with the sub (it comes with the first month free,) you can still do unlimited measurements it says. It even let me use a discount code for another $30 off so came out to $169.xx USD and no tax (but I believe I'll get charged about $30 or so from Customs, but still, a decent deal!) I'm excited to add this to my arsenal.
I have a lumen and I hate it. They don’t give you enough information. It’s vague. I’m so glad someone in their FB group told me about your book. I read your book and started doing alternative day fasting and it’s been so much better than the Lumen app ever was. I do still breath into it just to see what’s going on with it but their recommendations are not great.
I agree! My lumen constantly tells me I have failed because I eat more fat than carbs. It’s kinda strange how it wants you to eat less fat and expect you to take it seriously. It’s almost like they expect there customer base to be brainwashed sheep that believe what the FDA says about fat being bad.
Interesting video! Having lost 158lbs. by reading your books and watching your videos, I've learned how to eat to burn body fat. Most importantly, I gave up ALL refined carbs and sugars. They just make you crave more refined carbs and sugars...and they are addicting. And I learned how to fast. I love how I feel now. I'm 59 and the results have been amazing.
I can certainly see how this tool could be helpful. I'm starting a community outreach program/support group, to share my story and hopefully help others to learn how to fast. We will be reading The Obesity Code and discussing, watching videos and lectures etc. I'll check this out, learn more about it and share with the group that it's available. Thank you for all you do 😊🙏!
Great job!
@@MyChannel-j3r Thank you so much Dr.Fung. Any thoughts or suggestions for our community group? We have quite an interest already and will begin in January. I will also inform everyone about The Fasting Method. It's my first time organizing something like this 😃👍💪.
@@MyChannel-j3r Please watch my story on The Magic of Fasting UA-cam channel! 😃. Just one of the many thousands of lives you have changed. 🙏. Thanks for all you do
Lumen has some incredibly predatory pricing schemes for a company pretending to care about our health.
I got a good deal on my lumen. Considering how much food companies charge us for food that makes us fat...I would prefer spending my $$$ with Lumen as they do have more interest in our health versus the giant food companies.
For the price (agree not cheap) I think that I can afford to try for 6 months while I am in the midst of getting started on a fasting schedule. If it is not helpful, I will cancel in 6 months.
And remember to use discount code. I used the ‘LearnWithTravis’ and it discounted $100.
I read a bit about the Lumen. Not sure it would be that useful for the price. After awhile I think it would be just another thing in my drawer.
Hi Dr. Fung, I am your fans and I enjoy frequent prolonged fasting. Recently, I started to wonder that if I have hypothyroidism, can I still do prolonged fasting? Thank you!
Is there peer-reviewed data with this actual device and sustained weight loss? It would appear to be a great tool, but in the real world, with real people and real diets, does this actually make a difference? The device requires a regular subscription fee and I wish you would have spoken to what is expected of consumers when purchasing this product.
Really! A correlation of r=.264 is not a very high correlation. I lose a little faith in Dr. Fung when he starts trying to sell us gadgets. That being said, I have lost almost 150 lbs over the last 18 months without paying for any services or buying any gadgets.
Error at 9:34 - “closer to 0.1” should be closer to 1.0.
Looks interesting and I appreciate the info, but I'm not a big fan of subscriptions.
I could certainly see this device being helpful for those trying to verify their keto diet. Folks doing a daily time restricted diet could use this to fine tune their eating periods.
But for someone who is fasting, I'm not sure what extra or useful information this could provide.
I found the subscription plan totally confusing. It's a device so why is an app needed? Can't it just have an LED readout that tells you the Respiratory Quotient?
Can keto test strips or a ketone breath analyzer be utilized for those who are unable to afford lumen? Are they just as effective because they also provide immediate feedback to the user? Your videos are incredibly informative and helpful. Thank you for providing zero cost information to consumers👍
Exactly my thoughts. I have a Ketone meter. All I need to know if I am burning fat. Fung was paid well for this collaboration no doubt. Far too expensive gadget.
Ketones don’t come into the equation until you are running fully on fat plus gluconeogenesis aka ketosis. and thus you need to bring carb intake low enough to bring out the ketones. while with respiratory quotient it also works in non ketogenic scenarios.
@@sudsgroup I have a ketone meter too which is definitely helpful!
There is a link in the description if you want to know cost. If you are measuring ketones this device is probably moot.
@@seanlevoy9446 - Exactly. A ketone meter regularly used makes this device entirely unneccessary.
Has anyone had experience using the Lumen device? I have read extremely negative reviews. What do you think?
You don't need any device! Eating well and low- or zero-carb is FREE! Fasting is FREE! Staying active is FREE! Yes, all this information would be nice, but you don't need it. Just eat right and fast and enjoy the ride!
I had such great appreciation for every posts from Dr Fung, but endorsing this product is such a loss of credibility. Honestly, when you did the right thing to lose fat, you kind of feel it pretty well. Plus, a nice purple keto stick provides the confirmation we are burning fat for a very low cost.
New subscriber
Expensive device and needs also subscription.
What about measuring blood ketones?
Hi Dr. F, I thank God for you, i started IF coz of you ❤ … i would like to know if my sister who is a two time Kidney transplant patient is doing IF .. is it ok for her to do so ? Or will it hurt her new kidney ? Thank you very much for your reply … More power to you Dr. F ❤
Dr Fung, hi! How does this correlate to measuring ketones? I have a weird situation. I am successfully in a 20/4 IF . I am solidly in ketosis. Daily carb load is easily under 25g. I measure ketones and they alternate between .8 and ~2.5 daily. My weight lose have been pathetic at ~ 1.5 lbs/wk. My glucose alters too from mid 80s to 113ish. I'm stymied! I should also add I do 45min of elliptical/ day.
?? Perhaps you are eating too much dietary fat so your body is not getting to burn it’s own fat.
That chart didn’t look like it was demonstrating a particularly strong correlation between RQ and delta weight. I understand that software can provide a curve or trend line for any data set, but that looked questionable. Also, how do we differentiate between cause and effect?
Thank you doctor for your great podcasts !! May I know your opinion about using ozampic for weight loss? Thanks
Would this be a way to confirm you are in “Zone 2” during cardio? Normally you would need to measure your lactate levels through a blood drop test.
was also thinking of that, would we be able to see if we are in zone 2, there is a lot of endorsment for this product, but on the same time very little encouragment from real people who are using it
I wonder if the Lumen folks are paying attention to these comments? I would buy one in a heartbeat if I could just buy the device outright. But I simply won't do any more subscriptions, there are too many of those already.
You may know Dr.Robert Lustig. He seems to suggest that IF is best for fatty liver (NAFLD) but not for those without it. What is your view on this?
IF can help many people, I think
I bought the Lumen but it did not seem to provide readings that reflected what I was consuming. The meal plan seems overly complicated and suggested "balanced meals," which is what got us all in this mess. The group chat featured a lot of very upset and confused participants who were all tangled up in macros and calories. Food should be fun and not a math test. It probably works for extreme athletes. I will send it back but I appreciate the suggestion.
I love you Jason, but no, not spruiking for Lumen,. I may come back and change my mind, so there's that. Also, you have helped me improve my health, and I haven't paid you anything for that, so when I come back, i will look for ways to do that.
Dr. I am in Perimenopause and weight lose is difficult and extremely slow.
I keep losing and gaining the same 20 lbs. never getting beyond it. Im 220 lbs Insulin resistant. I’ve fasted 14 days lost 20 lbs to 200. 10 days later gained almost all back. No extreme diet changes. Idk😢 please advise.
There's no single diet that works for everybody always, unfortunately. You might consider getting a fasting coach.
Oh goodness I did the same thing until I went on full carnivore. Unbelievable changes
I kept eating the wrong things coming off of a fast forever after, I kept sabotaging what I had gained with the fasting .
I realize that I had to get rid of the sugar and the carbs and that is so key.
And with carnivore it is no sugar no carbs and no cheating. To be able to get the results that you want and to keep the weight off. my blood sugars are normal now my blood pressure is normal now my cholesterol is in a good spot, energy sleep good.
Watch Dr. Fung’s videos on it, Dr ken Berry and Kelly Hogan is a really good influencer for the carnivore diet
It’s hard to make the switch but well worth it, I just always keep in my mind that this is for my health and that I want to feel better and not have my arthritis hurt all through my body. And that has decreased 90%. But I am a strict carnivore to achieve this. Beef butter salt and water and I still do two coffees a day
It’s so easy, it Has to be that your focus is not on food, it’s on the nutrition for your body and what is best. That’s what I have to keep in my mind and it is working and it has been 7 months
Good luck and I wish you well
Me too! I keep losing and regaining the same 20 pounds as well, and I'm in perimenopause as well, and I'm also right at the same weight. #sameBoat
That's what I need.
Sounds great and might consider it if it wasn't for the subscription needed. Not into that.
I have an 18 month subscription worth every penny when it comes to my health.
Requires a subscription of $25/mo in order to work!?!?… is like charging a subscription to use a glucose meter. The device should be able to work subscription-free and if you want or need the app to coach you then you subscribe to the app
I agree, but it's not my company.
@@MyChannel-j3r i know and thank you for always sharing new ways to lose weight, i lost 60lb thanks to keto and your intermittent fasting book. Hopefully in the future the company provide a way to buy the device and separate its functionality from the app subscription.
The cost wouldn't be so bad up front if you didn't have to pay a monthly/yearly fee to use it. I've never seen a subscription for an app that pricey. I would more likely purchase if it came without a subscription. I suppose I will need to stick to not knowing what I am burning for fuel for now. Thanks for the video.
See the comment above about lack of strong correlation: I don’t think you will be missing anything but not buying this advice. I have had a lot of respect for Dr Fung over the years, but I’m afraid he’s not done his due diligence with this product.
Device not advice!
If you’re doing IF and Keto what’s the point in this device?
I would like to hear about stearic acid. There is a study I heard with people taking banana shakes and stearic acid. The stearic acid group had increased mitochondria activity and preference towards fat burning.
Was it produced by the Banana Marketing Board? Bananas are laden with sugar, I respectfully suggest you would be healthier to gain your stearic acid from fatty beef and pork, however if you really seek to twist the dietary advice it's also added to many types of chocolate for mouth-feel so just ignore the insulin spike while you dream of a juicy steak. 🍫
@@SpamMouse bannas were for starch, not stearic acid. The study explains it.
Stearic acid is the fat commonly found in beef.
@@DaniGirl6 Indeed, I covered that - the issue is bananas are laden with sugar.
@@susanstewart1402 cacao butter is also a source high in stearic acid.
Thanks a lot for this