Amino acids & related
Taurine
Names you may see: L-taurine amino sulfonic acid
The quick take
Taurine is an amino sulfonic acid present in the body and found in some sports and energy products.
A closer look
What forms will I see on a label?
Standalone taurine and caffeinated energy blends are different products. Check the caffeine content separately rather than assuming taurine is the stimulant.
Why people use it
Sports brands market taurine for hydration and training performance, including use around workouts. It also appears in formulas promoted for muscle fullness.
These are common goals and marketing uses. The evidence section below explains what research supports.
What does the evidence tell us?
Small exercise studies have explored recovery and performance measures. A study of taurine with other foods or nutrients does not establish a benefit for every taurine-containing formula.
What should I know before using it?
Assess the complete formula and follow its directions, particularly when taurine is combined with stimulants.
Sources & further reading
Published clinical study (PubMed) ↗
Content reviewed: September 30, 2026
General educational information. Follow the product label and seek individual advice when needed.