# tyrosine

CEFR C1 · Noun

Source: https://englishreference.com/word/tyrosine
Updated: 2026-05-20

## Definition

a type of amino acid that your body uses to make proteins and other important chemicals. It is found in many foods like meat, eggs, and dairy products.

For teachers: an amino acid that is a precursor to the neurotransmitters dopamine and norepinephrine. It is essential for the synthesis of melanin and thyroid hormones.

## Examples

- Tyrosine is found in high amounts in dairy products.
- The body converts tyrosine into dopamine, which helps regulate mood and focus.
- Researchers are investigating how tyrosine supplementation might help athletes maintain cognitive performance during high-altitude training where oxygen levels are significantly reduced.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.