(NON-ESSENTIAL AMINO ACID)
Is important to overall metabolism
; is a precursor of adrenaline, nor epinephrine, and dopamine, which regulate mood and stimulates metabolism and the nervous system
; acts as a mood elevator, suppresses the appetite, and helps reduce body fat
; aids in the production of melanin (the pigment responsible for hair and skin color) and in the functions of the adrenal, thyroid, and pituitary glands
; has been used to help chronic fatigue, narcolepsy, anxiety, depression, low sex drive, allergies and headaches.