This is a great video linked to me by rasse. This guy basically covers BCAA supplementation. The overview of it is Leucine is responsible for protein synthesis in the body and what supplement companies that sell BCAA products want you to believe is that by supplementing with more of it you can increase your gains and recovery(this is true). Protein synthesis peeks at around 3-4g of leucine per meal now if you already have a sufficient source of protein ie chicken, tuna, whey. Since this is true BCAAs seem to be a complete and utter waste because you're already capping out above that 3-4g of leucine. However I do believe Layne Norton's research said something about keeping protein synthesis elevated between meals by supplementing with 3-4g of leucine so you could use it for that. Other than that it seems you're wasting your money.