CellWell record HH-136008
Evaluation of the Safety and Tolerability of L-Tyrosine Supplementation in Healthy Adult Men: A Randomized Crossover Trial
Hideki Matsumoto; Naoki Miura; Masaki Naito; Rajavel Elango
2026
In plain language
In a randomized crossover trial in healthy men, L-tyrosine supplementation up to 4 g per day for four weeks caused no significant adverse biochemical or clinical effects, establishing that dose as the no-observed-adverse-effect level.
- Evidence
- Established
- Design
- Randomized controlled trial
Cite this record: https://thecellwell.org/studies/HH-136008
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