Supplements
Taurine
What is it?
Taurine is a naturally occurring compound found in muscle and many foods. It is often included in energy drinks and pre-workouts, but it is not caffeine and does not act as a stimulant. [1]
How does it work?
Taurine helps cells regulate fluid balance and is involved in calcium handling and muscle function. These roles explain why researchers test taurine for exercise, although the size of any noticeable workout effect still varies. [1]
Why is it in pre-workout?
There is a possible small acute performance benefit, though it is not dependable across tasks. A 2025 review of 23 randomized trials (308 people) found a small average improvement across mixed exercise tests. The authors rated the certainty low to very low because results were inconsistent and many trials were small or had bias concerns. Evidence for repeated hard sets was especially unsettled. [1]
For a concrete example, eight trained runners completed a 3 km treadmill run about 12 seconds faster after 1 g taurine than after placebo, taken two hours before the run. Another trial in trained cyclists found no 4 km time-trial improvement after 1 g. Neither result proves that taurine adds reps or muscle in the gym. [2,3]
IN THIS SCOOP
How much?
FORM & SCHEDULE
What it refers to
taurine per scoop
1 g is a label and studied amount, not a proven effective minimum. The positive running study used it two hours before exercise; timing is not settled.
1 g — taurine in the pictured scoop
Read detailed dosing notes
This is a product-label amount also used in small running and cycling trials. It is not an established effective or optimal dose. Studies have used roughly 1–6 g without a clear pattern that more works better. [1–3]
The positive running trial dosed two hours before exercise. Timing analyses across studies were uncertain, so there is no proven universal “take it X minutes before” rule. [1,2]
Sources & further reading
- Deng et al. (2025). Does One Shot Work? The Acute Impact of a Single Taurine Dose on Exercise Performance: A Meta-Analytic Review (opens in a new tab)onlinelibrary.wiley.com
- Balshaw et al. (2013). The effect of acute taurine ingestion on 3-km running performance in trained middle-distance runners (opens in a new tab)research.lancaster-university.uk
- Ward et al. (2016). The effect of acute taurine ingestion on 4-km time trial performance in trained cyclists (opens in a new tab)pmc.ncbi.nlm.nih.gov