Taurine

Compoundmitochondrial

Sulfur-containing amino acid concentrated in seafood and meats; synthesized endogenously. A 2023 Science paper (Singh et al., Columbia) reported taurine deficiency as a driver of aging and supplementation extending lifespan in mice, non-human primates, and middle-aged worms.

Taurine is a sulfur-containing amino acid synthesized endogenously and concentrated in seafood, meat, and dairy products. Recent research has linked taurine to mitochondrial health and aging, with studies in mice, primates, and worms suggesting it may influence longevity.

Mechanism of action

Taurine is thought to support mitochondrial function and energy metabolism, though the precise mechanisms remain incompletely characterized. Evidence suggests taurine may modulate oxidative stress, inflammatory pathways, and cellular energy production within mitochondria. A 2023 study (Singh et al., Science) reported that taurine deficiency accelerated aging phenotypes and that supplementation extended lifespan in animal models, implicating taurine in age-related mitochondrial decline, though the specific pathways mediating these effects require further investigation.

Evidence overview

A 2023 study published in Science by Singh and colleagues at Columbia University reported that taurine deficiency was associated with aging and that supplementation extended lifespan in mice, non-human primates, and Caenorhabditis elegans (a model organism). This cross-species evidence is notable and suggests taurine may play a conserved role in aging biology. However, this finding represents preliminary evidence, primarily from animal and model organism studies. Long-term randomized controlled trials in humans are lacking, and the optimal dose, duration, and clinical significance of taurine supplementation for human longevity remain unknown. Observational studies linking dietary taurine intake to lifespan or healthspan in humans are limited, and causality cannot be inferred from animal model data alone.

Frequently asked questions

What foods are high in taurine?+

Taurine is concentrated in animal products, including seafood (shellfish, fish), red meat, poultry, eggs, and dairy. Plant foods contain little to no taurine, making it a nutrient of interest for vegetarian and vegan diets, which typically have lower taurine intake.

Can the body make its own taurine?+

Yes, humans and other mammals synthesize taurine endogenously from the amino acids methionine and cysteine. However, synthesis may decline with age or be insufficient in certain health conditions, potentially contributing to age-related deficiency.

What did the 2023 Singh study actually show?+

The study reported that taurine deficiency was associated with aging across multiple organisms (mice, primates, worms) and that supplementation extended lifespan in these models. However, these findings are from animal and model organism research; long-term human trials are needed to determine clinical relevance.

Is taurine supplementation safe?+

Taurine is generally recognized as safe and is already approved as a food additive in many countries. However, long-term safety and efficacy data from randomized controlled trials in humans are limited, and supplementation decisions should be discussed with a healthcare provider.

Why might taurine deficiency increase with age?+

The mechanisms are not fully understood, but aging may impair endogenous synthesis (due to reduced enzyme activity or declining cofactors like vitamin B6), decrease dietary intake, or alter gut absorption—any of which could contribute to age-related taurine decline.

Open research questions

What are the specific molecular mechanisms by which taurine deficiency drives aging phenotypes, and which mitochondrial pathways are most critical?
Do the lifespan-extending effects of taurine supplementation observed in mice and primates translate to meaningful health benefits in humans, and at what doses?
Is taurine supplementation beneficial for all populations, or only those with baseline deficiency, and how is deficiency best identified clinically?
What is the relationship between endogenous taurine synthesis capacity, dietary intake, and age-related mitochondrial dysfunction?

Content overview generated by AI from pipeline evidence. Not medical advice — consult a licensed physician. Generated 2026-04-22.

Food sources

Recent research mentioning Taurine

PEX5 integrates the p38 MAPK signaling pathway and taurine metabolism to regulate senescence in lung fibroblasts.
Zheng L, Huang X, Peng Z, Qian S, Lu Y · Exp Cell Res · 2026-05-01pubmed
Transcriptomic profiling of chlorogenic acid and taurine treatment in human skin cells provides insights into cellular senescence mechanisms.
Kim B, Shin JG, Hong IS · Frontiers in molecular biosciences · 2026-03-20pubmed ai

Continuously updated by the research discovery pipeline. New citations appear automatically within a day of publication.

How it works

Taurine is a naturally occurring organic compound with the chemical formula H2N−CH2−CH2−SO2−OH in its non-zwitterionic form and H3N+−CH2−CH2−SO−3 in its zwitterionic form, and is a non-proteinogenic amino sulfonic acid widely distributed in mammalian tissues and organs.

Source: Wikipedia

Chemistry