L-Tyrosine is a non-essential amino acid that serves as a precursor for dopamine, norepinephrine, and epinephrine — neurotransmitters involved in mood, focus, and stress response. It also plays a role in thyroid hormone production.
Athletes and active individuals may benefit from L-Tyrosine supplementation during times of physical or psychological stress, such as intense training or competition. It supports cognitive function, especially under fatigue or sleep deprivation.
It is commonly used in pre-workout and focus-boosting formulas to promote alertness and mental resilience.
Synonyms:
Tyrosine
Benefits:
- Supports production of stress-related neurotransmitters
- Enhances focus, mood, and cognitive performance
- May reduce effects of stress and fatigue
- Supports thyroid function
- Improves alertness during prolonged exertion
Sources:
Found in high-protein foods like chicken, turkey, fish, dairy, eggs, and legumes. Also available in isolated form as a supplement.
Observations:
Commonly used in pre-workouts and nootropics. Typical dosages range from 500mg to 2000mg. May interact with thyroid medication or stimulants. High doses can cause headaches or nausea in sensitive individuals.
Areas of Study Related:
Neurobiology, Cognitive Performance, Endocrinology, Stress Physiology.