Taurine
Taurine is an amino sulfonic acid that the body can make itself. Unlike protein-building amino acids, it is not built into proteins.
Also listed as 2-aminoethane sulphonic acid, L-Taurine
How much can blood pressure change?
A 2024 meta-analysis pooled 25 randomized trials with 1,024 participants. Average reductions versus controls were about 4 mmHg systolic and 1.5 mmHg diastolic. Doses ranged from 0.5 to 6 g/day and follow-up from 5 to 365 days; populations and systolic results varied substantially. These are risk-factor findings, not proof of fewer heart attacks. 1
Who was studied directly?
In a 2016 trial, 120 people with prehypertension received 1.6 g/day or placebo for 12 weeks. Average 24-hour systolic pressure fell by 3.8 mmHg with taurine and 0.3 mmHg with placebo. Vascular function also improved; this studied regimen is not a general dosing recommendation. 2
Why is taurine discussed in aging research?
Animal experiments reported longer lifespan in worms and mice, providing a reason for human research. However, a 2025 NIH study found circulating taurine often increased or stayed stable with age, challenging its use as a universal aging marker. That observational result does not test whether supplementation extends human life. 3
Effects by health goal
Open an effect to see the studies behind its rating. Bars show the size of the effect; the letter grades the evidence.
Cardiovascular2 effects
No study is linked to this rating.
Longevity1 effect
No study is linked to this rating.
Immune Support1 effect
No study is linked to this rating.
Energy1 effect
No study is linked to this rating.
Sleep1 effect
No study is linked to this rating.
Cognition1 effect
No study is linked to this rating.
All studies
3 publications are linked to Taurine, newest first.