BCAA's are a waste of money, providing you eat sufficient protein.

Stimulation of muscle protein synthesis from ingestion of BCAA's post-workout is 50% lower than whey protein.

Although BCAA ingestion does stimulate muscle protein synthesis, the lack of EAA's limits the response.

"Thus, whereas our data clearly show that BCAA ingestion activates cell-signaling pathways that result in increased myofibrillar-MPS, ingestion of BCAAs alone may not be the optimal nutritional regimen to stimulate a maximal MPS response to resistance exercise training."

http://journal.frontiersin.org/artic...017.00390/full

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