Supplement analysis backed by scientific evidence · PT

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Moderate evidenceHeart & metabolic

Taurine

Taurine is a cheap, safe conditionally essential amino acid with genuinely decent cardiometabolic data: meta-analyses show reductions in blood pressure and improvements in lipids. Its endurance-performance effect is real but very small, and it is not what makes energy drinks work — that is the caffeine.

What the science says

  • Lowering blood pressure and improving lipids Moderate evidence

    A 2020 meta-analysis of randomised controlled trials found taurine supplementation significantly reduced systolic and diastolic blood pressure and improved triglycerides and total cholesterol, with the blood pressure effect on the order of several mmHg in hypertensive participants. Doses were commonly 1-6 g/day for 1-12 weeks.

  • Endurance exercise performance Moderate evidence

    Waldron's 2018 meta-analysis found a small but significant improvement in endurance performance with acute taurine dosing, with a pooled effect corresponding to roughly a 1-2% improvement. Single doses of 1-3 g taken 1-3 hours pre-exercise were most effective; chronic dosing showed no clear additional benefit.

  • Glycaemic control in type 2 diabetes Limited evidence

    Trials in diabetic populations report modest reductions in fasting glucose and HbA1c in some analyses, but studies are small, short and heterogeneous. Promising but not yet a reason to rely on taurine for glycaemic management.

  • Anti-ageing and longevity Limited evidence

    The 2023 Science paper showing taurine extended lifespan in mice and monkeys generated enormous attention, but there are no human longevity trials. Declining blood taurine with age is an association, not demonstrated causation, and subsequent human cohort data have been inconsistent.

Dosage & safety

Studied doseCardiometabolic trials use 1-6 g/day, most commonly 1.5-3 g/day in divided doses for 4-12 weeks. Endurance protocols use a single 1-3 g dose 1-3 hours before exercise. A typical 250 mL energy drink contains about 1 g.
SafetyAmong the safest supplements studied; a formal observed safe level of 3 g/day has been proposed, and doses up to 6 g/day are generally tolerated. Occasional GI upset. Taurine lowers blood pressure, so it can be additive with antihypertensives. Caution with lithium (possible altered clearance) and in bipolar disorder. Limited data in pregnancy. Not prohibited in sport, and it is naturally present in meat, fish and shellfish — vegans have markedly lower intakes.

Scientific references

Where to buy

Double Wood Supplements, Taurine, 180 Capsules (500 mg per Capsule)

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