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Tyrosine

Meaning

Tyrosine is a non-essential amino acid, meaning the human body can synthesize it from another amino acid, phenylalanine, making it a critical building block for various proteins and essential signaling molecules. In the domain of hormonal health, Tyrosine serves as the direct precursor for the synthesis of the catecholamine neurotransmitters—dopamine, norepinephrine, and epinephrine—as well as the thyroid hormones, thyroxine (T4) and triiodothyronine (T3). Adequate dietary intake or endogenous production of this amino acid is therefore vital for maintaining proper thyroid function and central nervous system signaling. Nutritional deficiencies in Tyrosine can theoretically impair the production of these critical neuroendocrine regulators.