DEXA scans, protein, time-restricted feeding, fasting & more [AMA 40 sneak peek] | Peter Attia, M.D.
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- Опубліковано 30 лип 2024
- Watch the full episode and view show notes here: bit.ly/3M9yvAE
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In this “Ask Me Anything” (AMA) episode, Peter discusses the importance of understanding body composition and explains how to interpret the most important metrics revealed by a DEXA scan, such as lean muscle tissue mass, visceral adiposity tissue mass, bone mineral density, and more. He discusses common concerning trends in these metrics as well as strategies to address them. He goes through DEXA scan results of both male and female patient case studies and explains the prescribed intervention for each patient. Additionally, Peter answers numerous questions about dietary protein including how much we need, when we need it, and how intake should be divided throughout the day to optimize muscle protein synthesis. Finally, Peter provides his updated point of view on time-restricted feeding and fasting and how his personal approach and recommendations for patients has evolved.
In this sneak peek, we discuss:
00:00 - Intro
00:08 - Interpreting DEXA scans: important metrics, radiation levels, and more
In the full episode, we also discuss:
-DEXA metrics: Bone mineral density (BMD);
-DEXA metrics: Visceral adipose tissue;
-DEXA metrics on lean tissue: appendicular lean mass index (ALMI) and fat-free mass index (FFMI);
-Concerning trends in BMD, VAT, & muscle mass revealed through DEXA scans;
-Muscle and lean tissue loss with age and how to overcome anabolic resistance;
-Female patient case studies: DEXA scan results and prescribed interventions;
-Male patient case studies: DEXA scan results and prescribed interventions;
-Protein consumption: recommended daily intake, Peter’s personal approach, timing around workouts, and more;
-What to look for with protein supplements;
-Protein intake: optimal timing and how it should be divided throughout the day;
-Time-restricted feeding (TRF): Peter’s updated perspective;
-Three strategies for reducing energy intake in over-nourished patients;
-Prolonged fasting: potential benefits and tradeoffs;
-A protein-supplemented version of time-restricted feeding (TRF);
-Theories about time-restricted feeding (TRF) and its positive influence on sleep and circadian rhythm; and
-More.
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About:
The Peter Attia Drive is a weekly, ultra-deep-dive podcast focusing on maximizing health, longevity, critical thinking…and a few other things. With over 45 million episodes downloaded, it features topics including fasting, ketosis, Alzheimer’s disease, cancer, mental health, and much more.
Peter is a physician focusing on the applied science of longevity. His practice deals extensively with nutritional interventions, exercise physiology, sleep physiology, emotional and mental health, and pharmacology to increase lifespan (delay the onset of chronic disease), while simultaneously improving healthspan (quality of life).
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Disclaimer: This podcast is for general informational purposes only and does not constitute the practice of medicine, nursing, or other professional healthcare services, including the giving of medical advice. No doctor-patient relationship is formed. The use of this information and the materials linked to this podcast is at the user's own risk. The content on this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they have, and they should seek the assistance of their healthcare professionals for any such conditions. I take conflicts of interest very seriously. For all of my disclosures and the companies I invest in or advise, please visit my website where I keep an up-to-date and active list of such companies. - Наука та технологія
![Bone health-everything you need to know [AMA 37 sneak peek] | Peter Attia, M.D.](/img/n.gif)
Really want to hear the rest of these AMAs, but the $20/month subscription is just a bit steep. I would suggest having tiers in your subscriptions, or even consider a pay-what-you-will model. I suspect that would bring a dramatic increase in overall subscribers, probably more than enough to offset the per-subscriber rate cut. You’d be engaging a much broader audience, including myself, who are very interested but still on the sidelines with their $$
20 a month?? Bummer, that is steep considering the economic hardships people have just been through and now this inflated economy.
@@marhee143g5 Extremely steep. Suitable for rich people, 100K/year people, not common people.
He could do a free or near-free version WITH ADS for us normal, non-rich people.
I'd love to see a model where maybe we can pay for episodes we are most interested in. I was interested to hear the updates on the time-restricted feeding but of course that's the portion not being shown.
Health information and resources still seem to be more accessible for the privileged. This model does nothing to address health inequalities. It's sad that even free content on social media offers only a glimpse into useful and potentially health transformative knowledge
Peter gets it done for all of our benefit
The full episode and the show notes mention that the optimal amount of protein is somewhere from 1.6 to 2.0 grams per pound of body weight ("The correct answer is somewhere from 1.6 to 2.0 grams per pound of body weight"), but I think what is meant is somewhere from 1.6 to 2.0 grams per KILOGRAM of body weight. That would be consistent with Peter's typical 160-180 grams of protein per day.
Of course. 2 grams per kg is way too high.
@@alan2102X I think _you_ meant "2 grams per pound is way too high" :-)
@@jajvirta Yes, thanks, sorry. Typo.
is that IDEAL body weight or current? for example those underweight and with low bone density
@@littlevoice_11 Current body weight. That level of protein is sufficient to build lean mass, assuming your are resistance training.
How does DEXA account for water percentage difference in muscles? Sodium levels can swing water levels tremendously, and therefore muscle (water) mass.
Thank you Dr. Attia for sharing your wealth of knowledge. For someone like me who grew up in the 80s and was given wrong information, your podcast really has changed the way I think of being healthy for longevity.
I get frequent Dexas and this was very insightful for me, thank you.
2:40 dexa scan
For a patient whose indication for DEXA is osteoporosis, will body fat metrics be given on the report automatically? Or does it need to be specifically asked for?
When my elderly family member had one she asked to get body fat measurements as well as the BMD measurements, and the radiology tech looked at her like she had three heads.
in the UK on the NHS dexa for bone density only provides bone results taken from specific areas of the body which are used as samples to represent overall bone density
Do u discuss the benefits 8f any of early morning eating window vs mid or late day eating.
He touched on the fact that even if you don't follow a TRF regimen, you shouldn't have your biggest meal late in the day which is unfortunately the most common way to eat in many developed countries. He recommends more than 3 hours between your last meal and bedtime to avoid high cortisol and insulin while sleeping.
Morning is more ideal because your cells are more insulin sensitive then
New test REMs ! Better than DEXA however try to find a location in Northern California!
Any one know where he stands on fasting (24 hr-5days) these days? I have his app but now that he is focused on daily protein intake, I don’t see him talking about longer fast. 🤦♀️ so confusing….did his view change? Thanks.
Yes, his view changed after he said he lost 20 pounds of muscle. What a dumb idea!
Has peter commented on the colonscopy study yet?
Please can you do a deep dive on "wear and tear" arthritis of the hip. Conventional doctors just say wait for it to get bad enough then have a hip replacement!
They tell my mother to rest and not move, but she will lose muscle. This time last year she was walking outdoors. Now still in her 50s, she's pain and getting less flexible and gaining weight.
No advice on diet, fasting, body muscle to fat ratio, exercise, gut health or supplements etc.
I feel taking high strength painkillers daily then other medications to mitigate the negative side effects of the painkillers on stomach and then layering that with advice to have a biscuit or toast doesn't seem to promote overall health. Pain management at any cost on full body health and quality of life.
She should still be able to do non-weight bearing exercise such as a bike to maintain or improve fitness. Activity, including weight bearing will actually promote joint health, assuming she isn't already "bone on bone". Do some light strengthening exercises for the hips like bridging and bands around the knees and see if she can get the pain under control and then progress to more weight bearing exercise.
@@GregKingston thank you 😊
I'm on a meat based diet and my arthritis in my hip feels so much better.
Wasn't able to find AMA 40
Where do you go to get a dexa?
Google…
Where do you go to get this done? My MD won't do anything he calls unnecessary 🙁. How much would something this How much would something like this cost?
Smart doc. Too many doctors are doing too much unnecessary procedures causing everyone’s insurance rates to go up.
@@zochert57 only possible when fiat money has more value than human life.... Insurance is a scam.
@Sal Cutino There’s a franchise called Dexafit in the US, lots of locations.
Usually 50-75 bucks depending on location and business. I believe you can also use your FSA/HSA account, if you have one through your work benefits.
@@Chuckp31 thank you
Attia's stats are wrong. The anual background exposure to radiation in most of the World is 2.5 millisieverts. A CT scan delivers from 4 to 20 millisieverts of radiation. That is, a single CT scan will deliver to your body an amount of radiation equivalent to 2 to as much as 9 years of background radiation. The worst are abdomen and full-body CT scans which expose the patient to, on average, the equivalent of 7 years of background radiation. In fact, the amount of radiation is so large that about 25% to 50% of people exposed to whole body CT scans experience mild symptoms of radiation poisoning. We now know that between 0.5% to 2.5% of *all* cancers are caused by CT scans.
The problem is that doctors are absolute apologists for CT scans and other highly destructive medical "treatments".The reason for this is a combination of convenience, legal reasons and greed. I have talked to doctors and they all say that the "benefit"(accurate diagnosis) of a CT scan "far": outweights the health risks of exposing the patients to the radiation of a CT scan. Really? Even when the patient arrives in the hospital after a mild bump to the head or something like that, doctors think that the benefit of exposing the patient's head to 4 years of background radiation "far" outweightsthe benefit of just looking at the head to see if there is a shattered bone? The truth is, doctors and hospitals make *huge* amounts of money from CT scans. They don't care about your health. It's about $$$$$$$$$$. A hospital will make $5,000 from a 10 minute exam from insurances. It's disgusting how they will push completely unnecessary and *harmful* medical "treatments" on you just because they want to purhchase that second yatch. Just like when you go to the dentist because you have a single cavity, and they want to CT scan your entire head even though it is 100% unnecessary. They do it because they are not interested in treating only your cavity. They want to seek any litle wrong thing there might be in your teeth so that they can push as many dental treatments as possible on you to make more $$$$$$$. Fun fact: a dentist flat out told me this, and that this is the reason why he quit the dental clinic he worked in, because the head dentist flat out said to all dentists that they should push as many treatments as possible. It's extremely scary that the people encharged of taking care of our health are mostly greedy businssmen with the exact same mentality of oil executives. And it's not like the doctors actually cure anything anyway. How long you live is determined mostly by your genetics, by your ability to wards off cardiovascular disease and cancer, which are the two biggest killers of Human beings. Doctors's don't do shit. Most of the gains in life expectancy of the past 50 years have been do people smoking less. Life expectancy is actually falling in the U.S. Medicine, at *best* keepsa you alive for a couple more years with no quality of life whatsoever while they suck dfy your life savings. If you see a 105 year old that is mentally sharp and walking on his own two feet, it is because of superior auto-repair instructions coded to his DNA, and not because of anything that a medical doctor has done for him. Look at his parents, and you will find a man who's dad died at 98 and who's mom died at 109. What doctors do is pretty much irrelevant. Controlling infectious diseases is the only thing that Western Medicine ever got right. It is an abject and utter failure at everything else.
U R a Muppet. Seems U can't even tell a DEXA discussion from a CT discussion. FYI: "DEXA has a low radiation dose (0.009-0.027 mSv). While radiation dose of Computed Tomography (CT) is higher (0.06-2.5 mSv)". If you are going to call out someone for citing incorrect DEXA data, don't then conflate/confuse that with full body CT scan data.
Impressed with channel and cause , but you mean photons and not electrons
Nick bud you got to get that camera more stable!
How many millis for a dental X-ray?
🙋🏻
Please consider reducing subscription amount....I am from 🇮🇳 India
time-restricted AMA... in the name of $cience.
I love Peter and his podcast, but I always feel like you have to be highly educated- I'm not and wealthy-Im not 😔
Still I glean what I can from the information he provides
He puts the good stuff behind a pay wall, but we get to listen to over 2 hours of an alcoholic's rucking escapades...
I don't know about that - the hard core good stuff is in the long technical interviews. The AMAs are useful summaries, but almost always re-covering ground from the free episodes.
Jeez, could you maybe stretch out the answer to a simple question any longer?🤦♂️
Peter’s inability to synthesize information to a useful level is exhausting.
Please increase the subscription to $100 per month, then no one will subscribe, which is just as well.
Almost no information came from this clip. Just Peter bloviating about radiation levels. I swear this guy just likes to listen to himself talk. His ideas have been debunked numerous times. Don’t waste your money people.
For example what ideas have been debunked ?
@@laurihanstin4464 the idea that continuous glucose monitoring has any benefits for people who aren’t diabetic is one. Peter just does this so he can offer extra stuff and charge his clients $150k per year for stuff they don’t need. He’s been debunked on plenty of other stuff tok
Don't watch, waste of time.