The Study
No ergogeniceffect of β-alanine on repeated sprint ability: a systematic review and multilevel meta-analysis of randomized controlled trials
This study looked at lots of different experiments where people took beta-alanine or a fake pill and then did short, fast sprints. It found that, on average, the supplement didn’t help them sprint better. But because the experiments were small and not all done perfectly, we can’t say for sure it never helps—just that it probably doesn’t.
Analysis score
Maximum 100 for a systematic review with meta-analysis.
Where the score came from
Beta-alanine helps your muscles handle burn during long sprints, but not when you're doing quick bursts with short breaks.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 553 / 100
Quality score
The highest quality evidence. Systematic reviews and meta-analyses that pool randomized controlled trials, giving the most reliable summary of experimental evidence.
Key takeaways
Summary
Based on the study abstract and findings.
- 1No, the result isn't meaningful for athletes — even high doses didn't help, because the real limit is how fast your muscles refill energy (PCr), not how much acid builds up.
- 217 studies with 17+ groups of athletes showed beta-alanine didn't improve average sprint speed, top speed, or how much they slowed down over multiple sprints.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Frontiers in Nutrition
Year
2026
Authors
Weibao Liang, Dandan Kong, Yiqiang Wang, Tianyuan Yu, Mingmei Chen, Wenbai Huang
Related Content
Claims (10)
Taking beta-alanine supplements does not change the maximum power output during short bursts of activity in female athletes.
Taking beta-alanine supplements does not change anaerobic performance in female athletes.
Taking beta-alanine regularly does not improve how well healthy young adults perform during repeated short bursts of high-intensity exercise, no matter how much they take, how long they take it, or what type of exercise they do, because the energy system used in these sprints relies on phosphocreatine and oxygen-based recovery, not on buffering acid buildup.
Beta-alanine supplementation improves performance in some types of exercise by reducing acid buildup in muscles, but it does not improve performance in repeated sprinting because the limiting factors in sprinting are energy store depletion and recovery speed, not acid buildup.
Different studies measure fatigue during sprinting in different ways, making it hard to compare results and reducing confidence that beta-alanine does not improve fatigue resistance.
Taking between 134 and 269 grams of beta-alanine does not lead to better performance in repeated sprint tests, even at the highest doses.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.