An essential amino acid. It is often added to animal feed.
An essential amino acid of special nutritional importance, since it is the limiting amino acid in many cereals.
An essential, basic amino acid obtained from many proteins by hydrolysis.
One of the essential amino acids, frequently marginal or deficient in cereal-based diets of poor quality.
An essential amino acid. When consumed with glucose, there is a threefold rise in insulin and glucagon release with a subsequent fall in blood glucose.
Lysine is an essential amino acid that is integral for protein formation. Along with vitamin C, lysine is particularly important for the formation of collagen. Lysine has been marketed for its potential augmentation of growth hormone, thereby enhancing production of muscle. As reviewed by Williams, most available research does not support a role for lysine supplementation in raising growth hormone concentration. As described in the entry for growth hormone, even direct injections of growth hormone are unlikely to enhance muscle synthesis in those who produce adequate levels endogenously.
Essential amino acid, needed for growth in children.
An indispensable amino acid, which ensures optimum growth in infants and balanced nitrogen metabolism in adults.
An amino acid that is a hydrolytic cleavage product of digested protein. It is essential for growth and repair of tissues.