Tyrosine is an amino acid that the body makes from a different amino acid called phenylalanine. Foods that contain phenylalanine include soy, chicken, milk, sesame seeds, and lima beans. Tyrosine may ...

Tyrosine is one of the 20 amino acids that people need to make proteins. It is a non-essential amino acid — which means your body can make it, so it doesn't have to be included in the diet. In fact, ...