This disclosure provides compositions comprising amino acid entities. The disclosure also provides methods for increasing myogenesis, increasing muscle protein synthesis, increasing muscle mass, improving muscle quality or enhancing muscle function comprising administering an effective amount of the compositions to a subject in need thereof.

The invention relates to bacteria of the Christensenellaceae family and to compositions including same for use in the prevention and/or treatment of pathological muscle loss and/or of at least one disease characterized by muscle loss in humans or animals.

The invention relates to bacteria of the Christensenellaceae family and to compositions including same for use in the prevention and/or treatment of pathological muscle loss and/or of at least one disease characterized by muscle loss in humans or animals.

A composition contains one or more aromatic amino acids and optionally vitamin B6. The composition may be an oral nutritional composition, for example a nutritional supplement, an oral nutritional supplement, a food product, a food for special medical purpose (FSMP). The composition can be in a form of a powder, a powdered stick, a capsule or a solution. The composition can be administered to an individual in need thereof orally or intravenously for preventing and/or treating sarcopenia, a loss of and/or improving skeletal muscle mass, lean muscle mass, skeletal muscle strength and/or skeletal muscle function.

A muscle enhancer containing a polyamine and a branched-chain amino acid as active ingredients. The polyamine may be one or more of putrescine, spermidine, and spermine, and may be derived from a yeast belonging to the genus Saccharomyces. The muscle enhancer may also comprise a crystalline polysaccharide. The muscle enhancer may be present in a food or a drink.

A muscle enhancer containing a polyamine and a branched-chain amino acid as active ingredients. The polyamine may be one or more of putrescine, spermidine, and spermine, and may be derived from a yeast belonging to the genus Saccharomyces. The muscle enhancer may also comprise a crystalline polysaccharide. The muscle enhancer may be present in a food or a drink.

The disclosure is directed to methods related to creatinine, for example, a method for its safe administration to a human, a method for using creatinine to improve the bioavailability of creatine, and a metn.

The disclosure is directed to methods related to creatinine, for example, a method for its safe administration to a human, a method for using creatinine to improve the bioavailability of creatine, and a metn.

A composition including at least one phytoecdysone or at least one semi-synthetic derivative of a phytoecdysone, for use in mammals for preventing the loss of muscle strength during immobilisation. More particularly, a composition for use that includes 20-hydroxyecdysone or a semi-synthetic derivative of 20-hydroxyecdysone. Moreover, the composition for use includes a compound of general formula (I).

A composition including at least one phytoecdysone or at least one semi-synthetic derivative of a phytoecdysone, for use in mammals for preventing the loss of muscle strength during immobilisation. More particularly, a composition for use that includes 20-hydroxyecdysone or a semi-synthetic derivative of 20-hydroxyecdysone. Moreover, the composition for use includes a compound of general formula (I).