Human · 2007 · Physical Performance & Muscle
Beta-alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters
This trial did something most supplement studies skip: it took muscle biopsies to confirm carnosine levels actually rose inside the muscle, then measured what that did to repeated all-out efforts in athletes who were already well trained.
Key takeaway
Raising muscle carnosine measurably reduced fatigue across repeated maximal efforts, even in trained sprinters who had little room left to improve.
How to read this
This is a plain-language summary written for a general audience, not a substitute for the paper. Sample size, dosing, population, and stated limitations all live in the original record — open the PubMed link above before drawing a conclusion from anything written here.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results vary. Always consult your physician before starting any new supplement or recovery protocol.