Taurine
A sulphur-containing amino acid abundant in youth that declines with age. A landmark 2023 Nature study demonstrated taurine supplementation extends lifespan by 10–12% in mice and reverses multiple hallmarks of ageing. One of the most compelling longevity molecules with an exceptional safety profile.
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What Is Taurine?
Taurine is a sulphur-containing amino acid — technically a β-amino acid — found in high concentrations in the brain, heart, retina, and skeletal muscle. Unlike most amino acids, it is not incorporated into proteins but acts as a free intracellular osmolyte and signalling molecule.
It is one of the most abundant amino acids in the human body in youth, but taurine levels decline significantly with age — by up to 80% between youth and old age in some tissues. This age-related decline has emerged as a potential driver of the ageing process itself.
The 2023 Nature Study
In June 2023, a landmark paper in Nature (Singh et al.) identified taurine deficiency as a driver of ageing across multiple species. Key findings:
- Taurine supplementation extended median lifespan by 10–12% in mice and 18% in nematodes
- Supplemented animals showed reversal of multiple hallmarks of ageing: reduced cellular senescence, improved stem cell populations, reduced DNA damage, better mitochondrial function, and lower inflammatory markers
- Middle-aged mice given taurine had bone density, muscle strength, memory, and immune function comparable to younger animals
- Human data: serum taurine levels inversely correlate with metabolic disease, inflammation, and all-cause mortality markers
This is one of the most significant longevity papers of the decade.
Mechanism of Action
Taurine operates across multiple ageing pathways simultaneously — which may explain its broad effects in the Nature study. It stabilises mitochondrial membranes, reduces ROS production, maintains telomere integrity, activates stem cell populations, and modulates epigenetic ageing markers.
Dosage
| Parameter | Recommendation |
|---|---|
| Dose | 1–4 g/day |
| Timing | Morning or pre-workout |
| Cycling | Daily, continuous |
| Form | Pure taurine powder (most cost-effective) |
Related Research
Stacking Interactions
How Taurine interacts with other compounds
Safety Profile — Tier A
Well-tolerated — strong human evidence
Contraindications
- ●Bipolar disorder (may interact with lithium)
- ●Renal impairment at very high doses
Side Effects
- ●Exceptional safety profile — among the best-tolerated supplements
- ●Mild GI discomfort at very high doses (>10g/day)
- ●No serious adverse events in clinical trials