If Validated That is Large Information on Leucine — A Paradox Solved?

So many paradoxes round leucine – The Most Important Amino Acid – However essentially the most highly effective stimulant of MTOR – Can’t construct muscle with out it – however stimulates Insulin secretion . . .

Been avoiding Leucine in fasted state and consuming submit exercise, however this video has me rethinking that.

What do others suppose and know right here?

Layne Norton was on Andrew Huberman’s podcast and briefly talked about Leucine position in Mtor. It is likely to be of curiosity to you as Norton did numerous his graduate work on Leucine

Rapamycin is a marvel drug within the sense that it lets us have our cake and eat it. What I imply is that the lifespan and healthspan methods battle. Technique A for a 40 yr previous male may contain castration, caloric restriction, fasting, leucine restriction, and so on. The technique A person ages slowly however suffers from frailty. Technique B man lifts heavy, takes TRT and maybe HGH, and consumes excessive leucine, and so on. He dies in his early sixties of coronary heart illness or most cancers, however he appears nice within the casket. Rapamycin and related molecules would be the solely intervention that fights each ageing and frailty on the identical time.

Dudley Lamming says that isoleucine is worse than leucine in his newest ARDD2022

So, what are we to do?
“The distinction between isoleucine and leucine is that isoleucine is a necessary amino acid that’s necessary for vitality manufacturing, whereas leucine is a necessary amino acid that’s necessary for muscle progress and restoration. Each are present in animal proteins, however leucine is often present in larger concentrations than isoleucine.”
Most animal proteins comprise round 3-5% isoleucine by weight.

So, the fats man tells you the right way to eat?

Low protein within the aged ends in sarcopenia and frailty.

I used to be thinking about his saying that the concentrations of leucine wanted to activate mTorc are pretty excessive, in extra of 1mM (12:00 in video), whereas the doses they offer get them to 0.5mM and ranges after excessive protein meal are sometimes 0.25 – 0.3 mM. This raises SIRT1 and SIRT3, he says, with out elevating mTORC.

I consider that’s true and actually, the video tells me that it could take extra protein than even a protein-rich meal has to boost leucine to ranges that may elevate mTORC.

In any case, decrease protein consumption is related to higher longevity in youthful individuals reasonably than older individuals.

“Conclusions: Our findings counsel {that a} excessive consumption of dietary protein is inversely related to frailty in older adults.”
“The meta-analysis of 4 research indicated that older adults with sarcopenia consumed considerably much less protein than their friends with no sarcopenia”

Sure precisely – that’s the revelation right here – Leucine carefully (as much as a excessive protein meal equal doesn’t drive MTOR.

Query is does it shut down autophagy?

However regardless I’m going to be a lot much less involved about taking Important Amino Acids – or protein wealthy meals in an already fasted state.

I should be lacking one thing. In the event you’re fasting, how are you getting Leucine?

In a each day intermittent quick (let’s say consuming in a 4/5h. window from 8:00AM forth) you possibly can/ought to have as a lot protein consumption as in earlier non-fasting days. The best program is to have as a lot vitamins, nutritional vitamins, aminoacids, proteins, … however in a a lot shorter time period each single day, IMHO.

I feel Peter Attia would check with your technique as time restricted feeding as a substitute of fasting, however I get your level and it is sensible. It serms like we’re on the lookout for protein sources which can be excessive in Leucine, however low in methionine. Leucine seems to be much more of a paradox now. Leucine promotes heathy progress, however extends lifespan in mice together with issues like Resveratrol. The Blagosklony thesis in a nutshell is that mtor associated progress accelerates ageing. We now have at the very least three issues that promote muscle progress but gradual ageing. Rapamycin, train, and leucine. Any others?

Good level – to be exact, going to be much less hesitant to take Leucine or Important Amino acids as a complement whereas in a fasted state – concern was/is getting out of autophagy or ketosis.

I get most of my leucine from non meals sources like beneath – am I nonetheless fasting if I’ve 5 grams of this?

Aminos Capsules – Kion?

In case you are fasted and ingest some protein your liver will in all probability kickstart some gluconeogenesis to replenish glycogen shops. I suppose that in case your quadriceps muscle groups have been glycogen depleted, equivalent to from a tough bicycle trip, you may keep in ketosis anyway. However why solely 5 grams? I feel you’d need thirty grams or extra to get any muscle protein synthesis going. So my method is stupidly binary. I water solely quick, or I eat like a clydesdale. Is that this good? In all probability not.