The Versatile Role of Amino Acid Supplements
Amino acids (AA) are not just building blocks for tissue proteins but also essential substrates for the synthesis of many low-molecular-weight substances with enormous physiological importance. AAs that can’t be synthesised by our own cells and must be provided in diets through food or amino acid supplements in order to sustain life are nutritionally “essential”. In contrast, AAs that can be synthesized by our own cell machinery and thought to be unnecessary in diets are considered nutritionally “nonessential”.