However, previous studies have reported that exercise improves muscle metabolism and quality,44 that BCAA stimulates muscle protein synthesis by activating the mammalian target of the rapamycin (mTOR) pathway,44 and that the multistrain probiotic can improve the proinflammatory state and hyperammonemia,30,45,46 both factors favoring muscle wasting.44 This evidence concerns the gene MTOR and Hyperammonemia.