Valine

VALINE is a branched chain essential amino acid that is sometimes classified as semi-essential. Valine is a constituent of fibrous protein in the body. It is the amino acid that is genetically substituted for glutamic acid in the hemoglobin molecule, resulting in sickle cell anemia. A deficiency of valine produces a negative hydrogen balance in the body.

For better muscle metabolism, tissue repair, and nitrogen balance, it is recommended that valine be taken with leucine and isoleucine. Valine was found useful in treatments involving muscle, mental, and emotional upsets, as well as for insomnia and nervousness. The range given for humans is between 375 mg. and 800 mg. per day. As with all nutrients, however, it is never advisable to take just one while excluding or minimizing others. This can lead to other problems. An excess can produce the sensations of "crawling skin," headaches, emotional agitation, and hallucinations.

A deficiency produces decreased coordination, deterioration of muscle function and mental health, insomnia, and skin hypersensitivity.
Food sources include dairy products, grains, meat, mushrooms, peanuts, and soy protein.
Other names for valine include: VAL, amino acid V, and 2-amino-3-methyl-butanoic acid.