Big effect
Taurine showed a large endurance boost in exercising athletes — but only in the heat, and the dose used was never specified.
While the effect size is unusually large for a supplement in a meta-analysis, this finding comes from a single, unblinded systematic review of 552 athletes in hot conditions, so it’s a promising lead, not a settled fact.
A systematic review of 552 athletes found that both taurine and menthol significantly improved endurance performance when exercising in high heat. The effect for taurine was strong (SMD = 0.91), but because the review couldn’t specify the exact doses used across studies and the population was limited to athletes in hot environments, this finding shouldn’t be assumed to apply to casual exercisers or cooler conditions.
Where this fits in the evidence
This is among the first studies we've indexed on Taurine for Improved Endurance — treat it as an early signal until more research accumulates.
The study
- Systematic Review
- n = 552
- 2025-06-27
- Nutrients
- PubMed: 40647246
- DOI: 10.3390/nu17132141
- Full study breakdown →
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.