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Beta-Alanine Side Effects & Safety

Evidence:Strong
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Generally Safe

Potential Side Effects

  • Paresthesia (tingling/prickling in face, hands, ears) — harmless and dose-dependent; reduces with smaller/sustained-release doses
  • No other significant side effects

Drug & Supplement Interactions

  • Taurine — beta-alanine competes with taurine for uptake; long-term high-dose use may reduce taurine levels (supplement taurine if concerned)
  • No known significant drug interactions

Maximum Dose

Do not exceed: 6.4 g/day is the upper range in studies; 3.2 g/day is sufficient for most people

Full Beta-Alanine Guide

References

  1. Meta-analysisHobson RM, Saunders B, Ball G, et al. (2012). Effects of β-alanine supplementation on exercise performance: a meta-analysis. Amino Acids. DOI PubMed
  2. ReviewTrexler ET, Smith-Ryan AE, Stout JR, et al. (2015). International society of sports nutrition position stand: Beta-Alanine. Journal of the International Society of Sports Nutrition. DOI PubMed
  3. Li N, Yan X, Lin J, Wu M, et al. (2025). Effect of carnosine or beta-alanine supplementation therapy for prediabetes or type 2 diabetes mellitus: a systematic review and meta-analysis of randomized controlled trials.. BMC endocrine disorders. DOI PubMed
  4. Meta-analysisGeorgiou GD, Antoniou K, Antoniou S, Michelekaki EA, et al. (2024). Effect of Beta-Alanine Supplementation on Maximal Intensity Exercise in Trained Young Male Individuals: A Systematic Review and Meta-Analysis.. International journal of sport nutrition and exercise metabolism. DOI PubMed
  5. Meta-analysisAshtary-Larky D, Bagheri R, Ghanavati M, Asbaghi O, et al. (2022). Effects of beta-alanine supplementation on body composition: a GRADE-assessed systematic review and meta-analysis.. Journal of the International Society of Sports Nutrition. DOI PubMed
  6. Grgic J (2021). Effects of beta-alanine supplementation on Yo-Yo test performance: A meta-analysis.. Clinical nutrition ESPEN. DOI PubMed
  7. Esteves GP, Swinton P, Sale C, James RM, et al. (2021). Individual Participant Data Meta-Analysis Provides No Evidence of Intervention Response Variation in Individuals Supplementing With Beta-Alanine.. International journal of sport nutrition and exercise metabolism. DOI PubMed
Show 4 more references
  1. Huerta Ojeda Á, Tapia Cerda C, Poblete Salvatierra MF, Barahona-Fuentes G, et al. (2020). Effects of Beta-Alanine Supplementation on Physical Performance in Aerobic-Anaerobic Transition Zones: A Systematic Review and Meta-Analysis.. Nutrients. DOI PubMed
  2. Dolan E, Swinton PA, Painelli VS, Stephens Hemingway B, et al. (2019). A Systematic Risk Assessment and Meta-Analysis on the Use of Oral β-Alanine Supplementation.. Advances in nutrition (Bethesda, Md.). DOI PubMed
  3. Meta-analysisSaunders B, Elliott-Sale K, Artioli GG, Swinton PA, et al. (2017). β-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis.. British journal of sports medicine. DOI PubMed
  4. Ashtary-Larky D, Candow DG, Forbes SC, Hajizadeh L, et al. (2025). Effects of Creatine and β-Alanine Co-Supplementation on Exercise Performance and Body Composition: A Systematic Review.. Nutrients. DOI PubMed