What Amino Acids Do?

OP here.
I'm following Ray Peat guidelines.
The studies that he cites shows major lifespan increases, in rodents, with restricting methionine. Higher methionine = higher inflammation.
And Ray's interprets serotonin as a bad thing. Dopamine and serotonin are opposing eachother. You want to be in a high dopamine, ambitious high energy mood, not in a high serotonin, couch potato mood.

Anyways I feel good eating 50g/day gelatin.

raypeat.com/articles/aging/tryptophan-serotonin-aging.shtml
raypeat.com/articles/articles/gelatin.shtml
raypeat.com/articles/articles/meat-physiology-stress.shtml

Life expectancy is mostly genetic, methionine restriction worsens sarcopenia since it requires protein restriction.
Quality of life matters life expectancy is just one metric of health, these losers obsessing over single amino acids wanting to hack their bodies don't realise most people don't need less protein but more specially as they age.

>methionine restriction worsens sarcopenia since it requires protein restriction.
No it doesn't.
Methionine restriction can be achieved by eating legumes or supplementing gelatin.

>ray pear
>i rodents
jflmao

Yes it does, take a look at the protein content in legumes, broadbeans are some of the highest glycine source in all legumes and a fucking kilogram of raw broadbeans would give you less than 70g of protein, total glycine content of that being less than that found in 100g of chicken breast LMFAO, this is ignoring the horrid protein quality of legumes let's not even talk about that and how certain amino acids are almost unabsorbed and just ferment in the gut.
Biohackercels always trying to reinvent the wheel make me laugh. Just eat meat and vegetables if you want longevity stop fucking coping and following what boomer cucks online say.
>supplementing gelatin
Literally 0 evidence that it helps with life expectancy, the only thing that helps life expectancy is starvation and being small, have fun being small and weak dyel cunt.
Even soibeans absolutely fucking SUCK for as a source of glycine despite being the best plant protein, fried chicken has like 2x the amount of glycine on a gram by gram basis LOL. Go shill your glycine meme shit somewhere else faggotbrains.

Legume protein has about 40% less methionine and cysteine than muscle meat. So eating legumes as your primary source of protein, rather than muscle meat, provides a good amount of methionine restriction.
Blue Zone diets have a lot of legumes.
Caucasus longevity people eat a diet high in gelatin and cheese.

No if you look at longevity studies, there are studies showing that:
(1) caloric restriction can improve lifespan
(2) methionine restricted diets can achieve the same lifespan increases as caloric restriction
And gelatin supplementation is the easiest way to deplete methionine. Glycine is known to deplete methionine.

>Collagen Supplementation (28% lifespan increase in 8-12% glycine supplemented rats): Dietary glycine supplementation mimics lifespan extension by dietary methionine restriction in Fisher 344 rats (faseb.onlinelibrary.wiley.com/doi/abs/10.1096/fasebj.25.1_supplement.528.2). “Dietary methionine (Met) restriction (MR) extends lifespan in rodents by 30–40% and inhibits growth. Since glycine is the vehicle for hepatic clearance of excess Met…we hypothesized that dietary glycine supplementation (GS) might produce biochemical and endocrine changes similar to MR and also extend lifespan…” >Seven-week-old male Fisher 344 rats were fed diets containing 0.43% Met/2.3% glycine (control fed; CF) or 0.43% Met/4%, 8% or 12% glycine until natural death. In 8% or 12% GS (glycine supplementation) rats, median lifespan increased from 88 weeks (w) to 113 w, and maximum lifespan increased from 91 w to 119 w v CF.

Caucasus Peasant Lives to 168: Caucusus man had a life of simple living and fresh mountain air. His usual diet was chicken broth, cheese and a curded milk called siren. Was not a smoker or a drinker. (nytimes.com/1973/09/03/archives/caucasus-peasant-dies-at-168-said-to-be-worlds-oldest-man.html#:~:text=MOSCOW, Sept.,and 219 other family members)

>broadbeans are some of the highest glycine source in all legumes and a fucking kilogram of raw broadbeans would give you less than 70g of protein
Lentils are 27% protein. People can live off rice and beans. And I'm not advocating a full legume diet. For one thing beef provides tryptophan restriction. Supplementing gelatin is by far the most important factor for improving protein quality according to these metrics. Eating cheese provides good cysteine restriction.

thanks this is the sort of stuff I was looking for

Or you can just eat meat and get way more glycine anyway and methionine and leucine and isoleucine and valine and cystine and tryptophan and basically every amino acid you can think of, this glycine methionine ratio shit is irrelevant what matters is total consumption.
>rats
JFLMAO
Lentils, beans and rice fucking suck as protein sources, you need more protein from those sources than you need from meat to cope with the shit protein quality.
You're advocating for a peasant diet, have fun being a peasant and have fun with your sarcopenic goals.

>Anyways I feel good eating 50g/day gelatin.

I make a bunch of soups with homemade chicken stock. When I make my chicken stock and cool it then its like a jelly. Very gelatinous and similar to a spreadable jam.

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