The Claim
β-Alanine supplementation has a significantly greater ergogenic effect on exercise capacity (effect size 0.50, 95% CI 0.25 to 0.75) than on performance outcomes (effect size 0.11, 95% CI −0.20 to 0.42) during efforts lasting 0.5–10 minutes, indicating a stronger enhancement of endurance during sustained high-intensity efforts compared to peak output.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
β-Alanine supplementation improves endurance during sustained high-intensity exercise more than it improves peak performance in efforts lasting 30 seconds to 10 minutes.
See the scientific wording
The ergogenic effect of β-alanine supplementation is significantly greater for exercise capacity (effect size 0.50, 95% CI 0.25 to 0.75) than for performance outcomes (effect size 0.11, 95% CI −0.20 to 0.42) during efforts lasting 0.5–10 minutes, indicating it enhances endurance during sustained high-intensity efforts more than peak output.
Taking β-alanine increases a substance in muscles that soaks up acid buildup when the body works hard for more than 30 seconds. This keeps the muscle environment less acidic, allowing muscles to keep contracting strongly for longer without getting tired, but it doesn't make short bursts of maximum effort faster.
What the research says
1 studyThis study found that taking β-alanine helps athletes hold out longer during tough, sustained efforts like repeated sprints, but doesn’t make them significantly faster in short, all-out bursts like a 100-meter dash.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.