Vegan diets tend to have higher ratios of methionine and cysteine, but lower levels of muscle-building branched-chain amino acids compared to animal foods.

“in the vegan foods you actually get a lot more methane if you look at the ratio actually of the amino acids I think the restoration that matters so you're getting a lot more methionine and potentially cysteine but not that not that much of the um muscle building branching amino acids”