What is Taurine (Taurine)?
Taurine is an amino sulfonic acid found in high concentrations in the body, particularly in the heart, muscles, and brain. It plays a role in cellular osmoregulation, calcium signaling, antioxidant defense, and energy metabolism. It is a classic component of energy drinks and has been studied at doses of 1-6 g for endurance performance.
- CAS number: 107-35-7
- Molecular formula: C₂H₇NO₃S
What Does Taurine Do? Why is it Used?
Taurine is a well-tolerated amino sulfonic acid with moderate evidence supported by meta-analyses for endurance performance and is a classic component of energy drinks. Its role in osmoregulation and energy metabolism may contribute to delaying fatigue during prolonged exertion. It is commonly used in functional/pre-workout formulations in combination with caffeine.
Usage as Sports Nutrition
The following information is based on sports nutrition research (ISSN position stands, randomized controlled trials, and meta-analyses); the level of evidence is clearly specified for each substance.
- Endurance Performance: Meta-analysis by Waldron et al. (2018): a single oral dose (1-6 g) of taurine improved human endurance performance with a moderate effect size, particularly in time-to-exhaustion tests. The mechanism of action is associated with delaying the drop in blood glucose and supporting fat oxidation during prolonged exercise.
- As an Energy Drink Component: Taurine is used in energy drinks combined with caffeine in the context of contributing to alertness and perceived performance; however, it is difficult to isolate the effect of taurine from caffeine/glucose (EFSA has therefore rejected claims).
- Hot Environment and Repeated Sprints: Taurine has been investigated for positive effects on endurance in hot/humid environments and contribution to recovery after repeated sprints, associated with its role in thermoregulation and as an osmolyte.
- Dosage and Evidence: The common effective range is 1-6 g; since the dose-response is weak, most protocols use a single 1-2 g dose before exercise. Evidence for anaerobic/muscular endurance is inconsistent — the primary support is for aerobic endurance.
Forms and Differences
Taurine is offered in different forms; form selection is made based on bioavailability, stability, and intended use:
- L-Taurine (pure): Pure taurine in free form; it is the standard form used in energy drinks and sports supplements. It is an amino sulfonic acid (not a classic amino acid), is water-soluble, and is typically used in doses of 1-6 g.
Usage in Dietary Supplements
- Acute Endurance Dose: According to meta-analysis, a single dose of 1-6 g taurine may improve endurance performance; interestingly, no clear dose-response relationship has been found within this range (threshold effect). It is generally taken 1-2 hours before exercise.
- Acute vs. Chronic: In meta-analyses, acute (single dose) and chronic (up to 2 weeks) usage showed similar effects for endurance; both approaches may be effective.
Usage in the Food Industry
- Energy Drinks (classic use): Taurine is the signature component of energy drinks; it is formulated with caffeine and glucuronolactone. The Turkish Food Codex Energy Drinks Regulation limits taurine content to a maximum of 800 mg per liter.
- Functional Food and Supplements: It is used as an osmolyte/antioxidant component in sports drinks, gels, and powder supplements. It is also found naturally/added in some foods such as infant formula.
Effects on Health
- Osmoregulation and Calcium Signaling (physiological): Taurine plays a role in muscle contraction and cardiac function as an intracellular osmolyte and regulator of calcium homeostasis; these are established physiological functions (not an official EFSA claim).
- Role in Antioxidant / Energy Metabolism: Taurine is involved in cellular antioxidant defense and energy-yield metabolism; however, EFSA has rejected these specific claims (protection of DNA/proteins/lipids, delaying fatigue).
Status of Health Claims (EFSA) — Transparent Information
There is NO OFFICIAL sports/performance health claim for taurine approved by EFSA. EFSA has REJECTED claims regarding taurine increasing physical performance, delaying fatigue, protecting against oxidative damage, and energy metabolism because causality could not be demonstrated (2009 and 2011 opinions). Benefits are based on research data and are not official claims.
Usage Limits and Safety
- Typical usage dose: 1-6 g/day for sports (often a single 1-2 g dose before exercise)
- Upper Limit (UL): There is no official numerical UL; EFSA has evaluated high taurine intakes in the context of energy drinks. A limit of 800 mg per liter (TR) applies in the context of energy drinks.
- Turkish legislation (Sports Foods / TETGK): The Turkish Food Codex Energy Drinks Regulation (2006/47): taurine in energy drinks must NOT EXCEED 800 mg per liter (also inositol ≤100 mg/L, glucuronolactone ≤20 mg/L, caffeine ≤150 mg/L). This limit applies in the context of energy drinks; the context of pure supplement sports foods is separate.
Generally safe and well-tolerated. In the context of energy drinks, the main concern is the combination with caffeine; those with cardiovascular sensitivity should pay attention to total caffeine intake.
Technical Specifications
| Parameter | Value |
|---|---|
| Moisture | ≤5.0 % |
| Total Heavy Metals | ≤10 ppm |
| E. Coli | Negative in 10 g |
| Salmonella | Negative in 25 g |
| Solubility | Water Soluble |
Scientific Studies
The following independent studies relate to the sports performance, bioavailability, and effects of this compound (study types are specified):
- PubMed 29546641 — Effect of oral taurine dose and supplementation duration on endurance exercise performance in humans: meta-analysis (Waldron et al., 2018)
- PubMed 34321990 — Dose-response of taurine in aerobic and strength exercises: systematic review (Kurtz et al., 2021)
Technical Documents and Supply — Asuka Kimya
You can contact Asuka Kimya for SDS, TDS, CoA, and supply conditions for Taurine.
References
- efsa.onlinelibrary.wiley.com
- efsa.onlinelibrary.wiley.com
- ods.od.nih.gov
- pubmed.ncbi.nlm.nih.gov
- pubmed.ncbi.nlm.nih.gov
The usage, sports nutrition, and health information on this page have been compiled from official legislation/institution sources (EFSA, NIH ODS, ISSN, Turkish Food Codex Sports Foods / Dietary Supplements Regulation) and independent scientific publications (PubMed). The product is a food supplement/sports nutrition raw material; it does not aim to diagnose or treat diseases.