-Precursor to neurotransmitters: tyrosine, dopamine, epinephrine, and norepinephrine
-Very important role in the structure and function of proteins and enzymes
-Very important role in creation of other amino acids
RDI
25 mg / kg (or from tyrosine) [105]
Sources
Beef, chicken, pork, tofu, fish, beans, milk, nuts, seeds, pasta, whole grains, and vegetables like sweet potatoes [135]
