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Beta-alanine: efforts of 1 to 10 minutes, a small effect and tingling

Supplements5 min read
On this page
  1. How it works
  2. For which efforts
  3. Trained athletes, bicarbonate, limits
  4. Doses, anti-doping, product
  5. How we reviewed it
  6. Sources

How it works

Beta-alanine is the precursor of carnosine, a buffer in muscle against proton build-up during effort. Taken every day it raises muscle carnosine; the ISSN position stand says at least 2-4 weeks to see improvements.1 That makes it the opposite of a race-day supplement: the effect depends on continued use.

For which efforts

The ISSN position stand reports more marked effects in time trials of 1-4 minutes, less neuromuscular fatigue, and the need for more research on strength and on endurance beyond 25 minutes.1 The Saunders et al. meta-analysis (2017) includes 40 studies and 1,461 participants. It finds a small overall effect that depends on effort duration. Between 30 seconds and 10 minutes the effect is larger in capacity tests (0.50) than in performance tests (0.11, interval including zero). Training status and the type of effort, continuous or intermittent, do not significantly change it.2 The effects are standardised: they are not seconds gained in a race. The AIS lists beta-alanine in Group A, for identified athletes with protocols.4

Trained athletes, bicarbonate, limits

  • Well-trained athletes: the IOC notes the effect seems harder to get, that response varies a lot between people and that it is not shown that people who raise carnosine more improve more.3 The meta-analysis, instead, finds no effect modified by training status.2 The two sources do not agree: we cannot say trained athletes do not benefit, or the opposite.
  • With bicarbonate: in the meta-analysis, combining it with bicarbonate gives the largest effect versus placebo (0.43). These are laboratory effort studies and do not say whether the combination is tolerated in a race. Bicarbonate can cause gut problems: see the supplements map.2
  • Side effects: tingling (paraesthesia), which in the sources eases with split doses or sustained release; the IOC also cites possible skin rashes. In healthy populations at recommended doses the ISSN position stand considers it safe.13

Doses, anti-doping, product

Studied protocols differ between sources in amount and duration: you will find them in the supplements map as studied doses, not prescriptions. The WADA list changes every year: check the one in force on race day.5 Product contamination is a known risk.3 WOLF LAB does not certify products or batches and does not recommend brands.

How we reviewed it

Document review of the sources: 2015 ISSN position stand, 2017 Saunders meta-analysis (abstract), IOC consensus, AIS and WADA pages. Not every full text. No WOLF LAB tests.

Limits. Small effect that depends on effort duration. The ISSN (2015) paper and the meta-analysis (2017) are dated and the sources on trained athletes do not agree. Meta-analysis effects are standardised, not seconds. No dose given. Not medical advice.

Sources

  1. Trexler ET et al. International Society of Sports Nutrition position stand: Beta-Alanine. J Int Soc Sports Nutr, 2015. PubMed.
  2. Saunders B et al. β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis. British Journal of Sports Medicine, 2017. PubMed.
  3. Maughan RJ et al. IOC consensus statement: dietary supplements and the high-performance athlete. British Journal of Sports Medicine, 2018. PMC.
  4. AIS (Australian Sports Commission). Sports supplements, Group A. AIS.
  5. WADA. The Prohibited List. WADA.

Sources read on 31 October 2026: abstracts and main sections, not every full text. General information, not medical advice. No WOLF LAB tests.

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