Conditionally essential

Chromium is a trace element whose trivalent form, Cr III, occurs in food and has been proposed to enhance insulin action, possibly...

Taurine, chemically 2 aminoethanesulfonic acid, is an amino sulfonic acid and one of the most abundant free amino acids in animal ...

L tyrosine is an amino acid made in the body from phenylalanine by the enzyme phenylalanine hydroxylase, so it becomes essential o...

Glycine is the simplest amino acid, with a single hydrogen atom as its side chain, and the only common amino acid that is not chir...

Arginine is an amino acid that healthy adults can synthesize, mainly from citrulline in the kidneys, but it is considered conditio...

Glutamine is the most abundant free amino acid in human blood and skeletal muscle. The body normally makes enough of it, but it is...

Carnitine is a compound synthesized in the liver and kidneys from the amino acids lysine and methionine, and its name comes from t...