If you are a trained athlete or everyday fitness enthusiasts, then you might consider supplementing with branched-chain amino acids (BCAAs).
BCAA which stands for Branched-Chain Amino Acids, a classification that consists of three particular compounds: Leucine, isoleucine and valine. All three BCAAs are directly taken up by your muscles rather than first being metabolized by your liver. As a result, BCAAs may have a faster effect.
Research suggests that BCAA may improve muscle mass ( build muscle ), decrease muscle fatigue and reduce muscle damage from exercise and alleviate muscle soreness.