POLL: Dietary protein and age related decline in muscle mass

[Dee]

"While plant-based foods do contain lysine and leucine, the levels are much lower than what’s typically found in animal proteins. More concerning, only a small fraction of these amino acids were being absorbed by the body; the rest were simply being excreted."

Bioavailability and compounds which interfere with absorption are major issues on a vegan diet. This is but one of many studies revealing some of the problems:

https://economictimes.indiatimes.com/magazines/panache/are-vegans-missing-out-on-muscles-study-reveals-shocking-pitfalls-in-plant-based-diets/articleshow/120382937.cms

We just completed 9 years of being vegan. I never worried about protein or vitamins and minerals the whole time, and yet I really should have...

Great information sharing !! That's the reason I qualified my point to "4-legged variety", since the typically are higher in saturated fat, which we generally eat too much of. Healthy protein alternatives, other than plant proteins, include fish, seafood in general like crustaceans, egg whites, dairy, cheese although also high in saturated fat, etc.