Taurine
Taurine
An abundant amino acid with emerging longevity benefits that supports sleep, cardiovascular health, and exercise recovery.
Taurine is one of the most abundant amino acids in the body, concentrated in the heart, brain, and muscles. Recent research has highlighted its potential role in longevity, while established benefits include supporting sleep quality, cardiovascular function, and exercise performance.
Mechanisms of Action
GABA Support
Activates GABA receptors for calming effects
Antioxidant Defense
Protects cells from oxidative stress
Cardiovascular Support
Supports heart function and blood pressure
Recommended Dose
1-3g daily
Optimal Timing
- Pre-workout for performance
- Evening for sleep
Can be taken without food
Best Form
Powder or capsules
Alternatives: Tablets
Simple amino acid; form doesn't significantly affect absorption. Powder is most economical.
Duration
Minimum: 2 weeks
Optimal: 8 weeks
Cycling: Not required
Note: Flexible timing. Evening for sleep benefits, pre-workout for performance. Can split dose.
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Improved Sleep
Better sleep quality through GABA activation
Faster Recovery
Reduced muscle soreness post-exercise
Heart Health
Support for cardiovascular function
Limited data; consult healthcare provider
Not banned; may support performance and recovery
Who Should NOT Take This
- Bipolar disorder (may affect mood)
- Epilepsy (may interact with seizure thresholds)
Drug Interactions
May affect lithium levels
May have additive blood pressure lowering effects
Possible Side Effects
Tip: Take with food
Tip: Take in evening
Warnings
- Very well tolerated
- Common in energy drinks but often underdosed
- Longevity research is emerging but promising
Top studies from 40+ peer-reviewed papers
Li J et al. ā¢ Nutrients (2025)
āWhile individual supplements may offer limited benefits, synergistic combinations may yield greater improvements in performance and comfort.ā
Key Findings:
- Standardized mean differences (SMDs) and posterior probabilities (P-scores based on Bayesian ranking) were calculated using random-effects and Bayesian models.
- Menthol (SMD = -1.83, 95% CI [-3.15, -0.51]; P-score = 71.04%) and taurine (SMD = 0.91, 95% CI [0.08, 1.73]; P-score = 12.75%) demonstrated significant positive effects on endurance.
- Menthol energy gel showed the greatest improvement in thermal comfort (SMD = 2.14, 95% CI [1.01, 3.26]; P-score = 99.54%).
Li F et al. ā¢ The American journal of clinical nutrition (2025)
āSupplementation with whey protein powder rich in MFGM, taurine, and B vitamins for 12 mo improve cognitive function in older adults with MCI.ā
Key Findings:
- The results also found a significant beneficial effect of the active intervention for several secondary cognitive outcomes such as Digit Symbol Substitution Test score, and the mean difference between groups in the ITT analysis was 2.72 (95% CI: 0.20, 5.23).
- Few side effects were reported during the study, and there was no statistically significant difference between groups (P = 0.74).
- Supplementation with whey protein powder rich in MFGM, taurine, and B vitamins for 12 mo improve cognitive function in older adults with MCI.
- This trial was registered at the https://www.chictr.org.cn/showproj.html?proj=150871 as ChiCTR2200062705.
Spillane J et al. ā¢ The Cochrane database of systematic reviews (2025)
āMore-recent trials are more robust, and well-conducted RCTs demonstrate moderate-certainty evidence for the efficacy of symptomatic treatments in non-dystrophic myotonias.ā
Key Findings:
- Mexiletine likely reduces hand grip relaxation time compared to placebo (mean difference (MD) 1.37 seconds better, 95% confidence interval (CI) 0.87 to 1.86; 2 RCTs, 56 participants; moderate-certainty evidence).
- There may be no difference in quality of life measures between mexiletine and placebo (36-item Short Form (SF-36) Physical Component Summary (PCS): MD -1.40, 95% CI -5.56 to 2.76; SF-36 Mental Component Summary (MCS): MD -1.10, 95% CI -6.17 to 3.97; 1 RCT, 38 participants; low-certainty evidence).
- Non-dystrophic myotonia Mexiletine Mexiletine likely reduces myotonia compared to placebo using the Interactive Voice Response Diary Stiffness score (across both treatment periods: MD -3.12, 95% CI -3.75 to -2.49; 2 cross-over RCTs, 89 participants; moderate-certainty evidence).
- Mexiletine likely improves quantitative hand grip (MD -0.11, 95% CI -0.18 to -0.04; 2 RCTs, 89 participants; moderate-certainty evidence).
Deng H et al. ā¢ Journal of the International Society of Sports Nutrition (2025)
āCAF+TAU co-supplementation provides a balanced ergogenic effect, combining the central stimulation of CAF with the neuromodulatory and metabolic support of TAU, particularly beneficial for high-intensity, reaction-based tasks.ā
Key Findings:
- Posterior estimates indicated that CAF+TAU was associated with a credible positive effect on anaerobic capacity (gā=ā0.46, 95% CrI [0.19, 0.71]) and reaction time (gā=ā0.75, 95% CrI [0.29, 1.18]) compared to CAF or TAU alone.
- CAF showed the greatest posterior reduction in RPE (gā=ā-0.64, 95% CrI [-1.20, -0.10]), while its posterior mean estimate suggested a potential increase in B[la] (gā=ā0.24, 95% CrI [-0.48, 0.96]).
- In contrast, TAU showed a possible tendency toward reducing B[la] (gā=ā-0.30, 95% CrI [-1.01, 0.42]).
Cao Q et al. ā¢ International journal of food sciences and nutrition (2025)
āOverall, the findings of the present meta-analysis do not provide sufficient evidence to support the efficacy of taurine supplementation in enhancing cognitive function.ā
Key Findings:
- A total of 7 RCTs with 9 intervention trials involving 402 individuals were included.
- Taurine, administered alone or in combination with exercise training, did not exhibit significant effects in cognitive scores.
- Overall, the findings of the present meta-analysis do not provide sufficient evidence to support the efficacy of taurine supplementation in enhancing cognitive function.
Study Type Distribution
Goals This Supplement Supports
Related Goals
This information is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before starting any supplement.