Nutritional formulation suitable to manage the diet for phenylketonuria, which comprises glycomacropeptide (GMP) as the primary source of proteins and additional complementary essential amino acids, to complete the required protein profile, supplied in a mixture comprising arginine, cystine, histidine, tryptophan, tyrosine and leucine.

Nutritional formulation suitable to manage the diet for phenylketonuria, which comprises glycomacropeptide (GMP) as the primary source of proteins and additional complementary essential amino acids, to complete the required protein profile, supplied in a mixture comprising arginine, cystine, histidine, tryptophan, tyrosine and leucine.

Gender specific synthetic nutritional compositions for female or male infants of 1 to 2 months of age wherein, the concentration of arginine is adapted based on that found in HM produced for an infant of the same gender and age, and nutritional systems comprising them.

Gender specific synthetic nutritional compositions for female or male infants of 1 to 2 months of age wherein, the concentration of arginine is adapted based on that found in HM produced for an infant of the same gender and age, and nutritional systems comprising them.

A nutrient composition comprises an essential nutrient in which at least one exchangeable H atom is .sup.2H and/or at least one C atom is .sup.13C. The nutrient is thus protected from, inter alia, active oxygen species.

A nutrient composition comprises an essential nutrient in which at least one exchangeable H atom is .sup.2H and/or at least one C atom is .sup.13C. The nutrient is thus protected from, inter alia, active oxygen species.

Amino acid compositions for promoting vascular endothelial health include arginine, citrulline, and taurine. Compositions may be combined with additional ingredients to form beverages, concentrates, and non-liquid food compositions. Methods of making concentrate compositions, beverage compositions, and non-liquid food compositions are provided. Methods of administering compositions to improve endothelial health, treat endothelial dysfunction, treat sexual dysfunction, treat altitude sickness, treat decompression sickness, treat jet lag, and treat fatigue include administering compositions including arginine, citrulline, and taurine.

Amino acid compositions for promoting vascular endothelial health include arginine, citrulline, and taurine. Compositions may be combined with additional ingredients to form beverages, concentrates, and non-liquid food compositions. Methods of making concentrate compositions, beverage compositions, and non-liquid food compositions are provided. Methods of administering compositions to improve endothelial health, treat endothelial dysfunction, treat sexual dysfunction, treat altitude sickness, treat decompression sickness, treat jet lag, and treat fatigue include administering compositions including arginine, citrulline, and taurine.

Amino acid formulations for cardiac vitality. The formulations comprise a mixture of a plurality of amino acids, wherein the mixture comprises at least one amino acid selected from the group consisting of serine, threonine, histidine, and/or proline, and optionally arginine Methods of enhancing smooth muscle cell vitality, stabilizing cardiac health, and decreasing oxidative stress and inflammation are also described.

Amino acid formulations for cardiac vitality. The formulations comprise a mixture of a plurality of amino acids, wherein the mixture comprises at least one amino acid selected from the group consisting of serine, threonine, histidine, and/or proline, and optionally arginine Methods of enhancing smooth muscle cell vitality, stabilizing cardiac health, and decreasing oxidative stress and inflammation are also described.