L-Tyrosine is a precursor for dopamine and norepinephrine, which may help to promote weight loss through increased body activity and thermogenesis and decreased appetite.
Tyrosine (aka 4-hydroxyphenylalanine) is a non-essential amino acid used in the synthesis of certain neurotransmitters including dopamine, norepinephrine and epinephrine, as well as thyroid hormones thyroxine and triiodothyronine (Rosebrough 1994).
