Aging-related inflammation is not universal across human populations

so, only eat vegetables?

Beans and nuts for protein?

You're aware of how many more grams of food you need with legumes to have the same proteins as a tiny slice of meat?

Protein per 100g of meat (let's say beef): ~26g

Protein per 100g of soy beans: ~40g raw, ~30g cooked

PDCAAS for beef (Protein Digestibility Corrected Amino Acid Score): 0.92

PDCAAS for soy: 0.91

Approximately no additional grams, if you pick the right legumes.

Sources:

https://en.wikipedia.org/wiki/Protein_quality

https://en.wikipedia.org/wiki/Soybean

https://en.wikipedia.org/wiki/Beef

But in practice don't most people mean tofu when talking about soy beans for protein? That tends to come out at 10-13g per 100g. Same for cooked cans of soy/edamme beans and most other canned lentils/pulses? I've never seens 30g per 100g for cooked canned beans in reality.

I eat a high protein, vegetarian diet optimised for lifting weights, and "Approximately no additional grams, if you pick the right legumes." doesn't really add up for me. For the main sources of protein I usually try to eat daily:

Tofu 400g; eggs 3 large; cottage cheese (low-fat) 300g; greek yoghurt (0% fat) 250g; beans/lentils (mixed) 1-3 cans;

and then also supplement with whey protein powder to get to my daily protein target (~150g). To get there with just legumes I'd need to consume 15 cans of cooked lentils (i.e. not achieveable in reality).