dr. h, what do you say to the notion that leucine is "toxic" when consumed in large amounts in proportion to valine and isoleucine.
and that even though only leucine promotes protein synthesis,
it depletes valine and isoleucine, and the lack of valine and isoleucine inhibits protein synthesis?
i ask this because i'm currently supplementing with 10 grams BCAA's (ratio 2:1:1) pre and post workout, making good gains.
but i'm wondering if i switch to supplementing with only leucine; would it help or hurt my progress?