Two pooled analyses published before 2026 sharpen the picture of what beta-alanine does. A 2025 meta-analysis by Ong and colleagues on dosing in strength and power contexts found that a median total intake of about 179 grams over a supplementation period was associated with an average improvement of roughly 2.85 percent in exercise performance, with the clearest effects in efforts lasting around a minute or longer. A 2024 meta-analysis by Georgiou and colleagues reached a compatible conclusion: measurable gains in exercise output in tests lasting roughly four to ten minutes, and no clear benefit in shorter efforts.
24 News Click publishes information, not medical advice. Supplementation decisions belong with a qualified clinician. The side-effect profile is also documented: paresthesia — a transient tingling — is common and, per the cited literature, benign.
What the pooled data do not show
Three limits bound the conclusions. The pooled analyses average heterogeneous tests — cycling, running and rowing efforts with different sensitivity to buffering. Most included studies are small, in the dozens of participants, though pooling strengthens the estimates considerably. And the outcome measures are performance tests, not competition results or training adaptations. Claims that beta-alanine aids maximal strength, brief sprints under a minute, or endurance events beyond roughly ten minutes are not supported by these pooled findings — a boundary the meta-analyses themselves state.
Why duration is the whole story
Beta-alanine raises muscle carnosine, a buffer that blunts acid accumulation during high-intensity work. Buffering matters only when acidosis limits performance — which is why the pooled effects concentrate in the one-to-ten minute window and fade below it. The Ong analysis, per its published results, associated larger total intakes with greater carnosine-related benefit, while the familiar side effect, skin tingling (paresthesia), is documented as transient and non-dangerous in the cited literature.
The takeaways for a reader are narrow and honest: the effect is real but modest in pooled terms, it is specific to sustained high-intensity efforts, and a 2025 Nutrients meta-analysis by Ashtary-Larky and colleagues found creatine plus beta-alanine was not consistently superior to either supplement alone for some outcomes. Claims beyond that window — fat loss, strength gains in single lifts, endurance events — are not what these analyses measured.
For readers weighing the practical meaning: the two analyses agree with each other, which is itself informative. When independent pooled analyses using different inclusion criteria land on the same narrow window and a similar modest effect size, the finding is about as settled as sports-nutrition evidence gets. The remaining open questions concern dosing strategy and duration, which the Ong analysis began to address, and effects in women, who remain underrepresented in the underlying trials.
Claims beyond that window — fat loss, strength gains in single lifts, endurance events — are not what these analyses measured.For more context, read What does creatine actually do? The evidence, weighed.
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