Tyrosine: Interactions

Interactions of tyrosine with other agents (micronutrients, foods):

Phenylalanine

Tyrosine can be produced in the human body from the essential amino acid phenylalanine. Therefore, if there is an existing deficiency of phenylalanine, tyrosine becomes indispensable! Conversely, tyrosine supplementation reduces the amount of phenylalanine needed.

Caffeine

There is evidence that tyrosine administration enhances the effects of certain stimulants, such as caffeine, ephedrine, and amphetamines.