The problem of the present invention is to provide an amino acid-containing composition for enhancing recovery from muscle fatigue. An amino acid-containing composition for enhancing recovery from muscle fatigue, containing the following amino acids (1) - (9), wherein the molar content ratios of the respective amino acids to the total content of the amino acids (1) - (9) fall within the following numerical ranges: (1) leucine 35 - 66% (2) isoleucine 5.0 - 15% (3) valine 5.0 - 15% (4) threonine 7.0 - 14% (5) lysine 8.0 - 16% (6) methionine 2.0 - 10% (7) histidine 0.1 - 3.5% (8) phenylalanine 2.5 - 8.0% (9) tryptophan 0.1 - 2.0%.
