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21.04.2025

Taurine supplementation makes you more resistant to heat

Taurine stands out from all the supplements that athletes tend to use. Taurine makes the body more resistant to heat. This is evident from a meta-analysis that British sports scientists published in January 2025 in the American Journal of Physiology | Regulatory, Integrative and Comparative Physiology.

Study
Researchers from Swansea University traced 117 human studies in the scientific literature on the effect of supplements on body temperature in hot weather. They also found 93 human studies on the effect of supplements on sweating in high temperatures. By combining these data, the British wanted to find out whether - and if so: which - supplements can protect the body from overheating.

Almost all of the studies involved subjects who had to cycle or run in high temperatures. The supplements that the authors of the studies used supplements such as creatine, nitrate, L-glutamine, colostrum, probiotics, blackberry extract, tyrosine, BCAAs, L-arginine, vitamin C, Tongkat Ali, glycerol, AKG and alpha-lipoic acid.

Results
Most supplements had no effect. They had little or no positive or negative effect on the body's ability to prevent overheating.

An exception in the negative sense was caffeine. Caffeine slightly increased body temperature during exercise in the heat. Co-supplementation with ginseng seemed to enhance that effect. This suggests that caffeine supplementation may make the body slightly more vulnerable to heat.

An exception in the positive sense was taurine. Taurine supplementation reduced the increase in body temperature during exercise in the heat. In addition, taurine increased the amount of sweat with which the body can cool itself.

Co-supplementation with taurine and caffeine had no positive or negative effect on the body's ability to prevent overheating.

Dosage
In the studies used for the meta-analysis, researchers used taurine at a dose of 50 milligrams per kilogram of body weight. Subjects consumed their supplement 1-2 hours before the experiment began.

Source:
Am J Physiol Regul Integr Comp Physiol. 2025 Apr 1;328(4):R515-R555.

More:
When it is hot, athletes perform better with taurine 18.05.2019

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