Taurine

Supplements · Sports Performance · Supplement, Typed Supps

One of the most abundant amino acids in your body, and you make it yourself.

Stage by stage

Intake (Capsule or drink): Absorbed quickly and efficiently in the small intestine.
Small intestine (Quick, efficient absorption): Absorbed quickly and efficiently in the small intestine.
Bloodstream (Circulates widely): Circulates widely through the blood before concentrating in electrically active tissue.
Brain, heart, muscle (Found in high concentrations): Involved in regulating cell hydration, electrolyte balance, and nervous system signalling.

Producing small improvements in endurance exercise performance — limited evidence. Pooled small trials suggest a modest ergogenic effect at roughly 1–3 g, but individual studies are small and heterogeneous.
Improving cardiometabolic markers such as blood pressure and glucose — limited evidence. Some small trials show favourable changes; not enough consistent human data to call it established.
Acting as an energy or focus booster on its own — insufficient evidence. Most of the 'energy' effect people attribute to taurine in drinks comes from caffeine and sugar; taurine alone has little evidence for alertness or focus.
Evidence on Being safe at supplemental doses — moderate evidence. Reviews of controlled trials using up to about 3–6 g/day report no serious adverse effects, which is reassuring, though very long-term data are limited.

1–3 g daily

Upper limit: No established UL; EFSA identified an observed safe level of about 6 g/day (roughly 100 mg/kg)

Any time; commonly combined with caffeine in energy drinks.

“Taurine is a stimulant like caffeine.” In reality: It’s not a stimulant itself — caffeine does most of the stimulating work in energy drinks.