Neurotransmitter Synthesis: Tyrosine, Derived From Phenylalanine, is a Precursor for the Synthesis of Neurotransmitters Such as Dopamine, Norepinephrine (Noradrenaline), and Epinephrine (Adrenaline).
Hormone Production: Tyrosine Also Serves as a Precursor for the Production of Hormones, Including Thyroid Hormones and the Adrenal Hormones Norepinephrine, and Epinephrine.
Essential Amino Acid: L-phenylalanine is Classified as an Essential Amino Acid, Meaning It Must Be Obtained Through the Diet Because the Body Cannot Produce It on Its Own.