What are the benefits of taking the L-Tyrosine supplement and what is its maximum daily dosage?

What is it and where does it come from? L-tyrosine is a nonessential organic amino acid that is a building block of protein. It is an organic amino acid due to the presence of a carbon atom in its makeup. It is a precursor of the neurotransmitter dopamine, as well as a precursor to the adrenal hormones norepinephrine and epinephrine. The body can make L-tyrosine from the amino acid phenylalanine. L-tyrosine rich foods include animal meat, wheat products, oatmeal and seafood. What does it do and what scientific studies give evidence to support this? L-tyrosine may help athletes avoid overtraining, due to its ability to offset fatigue. Because L-tyrosine is a precursor of Dopamine, supplementing with L-tyrosine may heighten mental alertness, increase feelings of well being, decrease feelings of depression, and offset physical and mental fatigue. Who needs it and what are some symptoms of deficiency? Everyone. Populations in need of L-tyrosine include: athletes, the obese or overweight, ...  more