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Catalyst

L-tyrosineFinding

L-tyrosine has no detected effect on time-trial completion time

no difference foundVery limited evidenceFinding

01 · The sentence it was drawn from

“Furthermore, no difference was observed in any physiological variable between conditions (P > 0.05) or time trial completion time (P = 0.74) between TYR (19.78 ± 3.44 min) and placebo (20.29 ± 3.55 min).”
Quoted verbatim from Tyrosine Ingestion and Its Effects on Cognitive and Physical Performance in the Heat.
This finding among the 21 findings on its endpoint

L-tyrosine

Time-trial completion time

no difference found

Who
healthy participants performing a military-based load carriage protocol in the heat (40°C, 30% relative humidity): 60-min walk at 6.5 km/h then a 2.4-km time trial carrying a 25-kg backpack
Dose studied
not reported

Very limited evidencePMID 26285023 · 2016

02 · The study

Study
crossover
Duration
not reported

Evidence, by strength

  • strong
  • moderate
  • limited
  • very limitedthis finding
  • insufficient

03 · The paper

Medicine and science in sports and exercise
What else it reported1 finding · 1 compound · 1 endpoint

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M6ZW3YE0GK1DVCK676R1QF81