Supplementing with these amino acids does not appear to have meaningful ergogenic benefits for trained athletes. However, supplementation may provide long-term benefits with respect to muscle growth[1] and preservation,[2] which may lead to accumulated performance benefits in the long term.
Will supplementing with BCAAs and arginine increase exercise performance?
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•Last Updated: May 16, 2025
Supplementing with branched-chain amino acids (BCAAs) and arginine does not show significant immediate performance benefits for trained athletes, but it may contribute to long-term muscle growth and preservation, which can potentially lead to accumulated performance improvements over time.