BCAA’s are arguably one of the most popular muscle building/sports
performance supplements on the market today. On paper, BCAA’s sound
amazing. BCAA’s make up approximately one third of the protein
content of muscle and include the amino acids leucine, isoleucine and
valine. Unfortunately, research for BCAA supplementation in the
presence of adequate protein intake for a reference athlete or
individual does not seem to promote a benefit.(107)
Another example can clearly be seen in a study by Churchward-Venne et al.
2012. 24 males participated in a study that involved being
sectioned into groups that supplemented with either a complete whey
source versus a lower dose of whey protein combined with leucine and
other essential amino acids. The results showed that even though the
low dose combined with EAA’s was able to augment skeletal muscle
growth for a few hours following exercise, only complete whey could
continue to keep up the pace and keep the muscles growing.(125) Keep
in mind people, the global market for sports based nutrition is
lucrative and is projected to increase by over 50% by 2022.(126) Yes,
some supplements do work but this is a billion dollar industry we are
talking about, and to maintain these numbers they are going to have
to allow some supplements to slide through to keep up with the bottom
line. Optimizing your performance comes a distant second my friends.