Beta Alanine
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Evidence Summary
Beta-alanine is a non-essential amino acid that serves as a precursor to carnosine, which plays a critical role in buffering hydrogen ions during high-intensity exercise. Research generally indicates that it is an effective ergogenic aid for improving performance during high-intensity and maximal-intensity activities.
Evidence by Condition
Meta-analyses demonstrate improved exercise capacity and the ability to buffer hydrogen ions during intense efforts.
Evidence is inconsistent, with some studies showing no improvement in 5000m running or simulated road cycling performance.
Combining beta-alanine with creatine may influence exercise performance and body composition.
Effective Doses
Research includes high-dose loading protocols and doses of approximately 3.2g as part of multi-ingredient pre-workout supplements.
Key Findings
- Beta-alanine supplementation improves exercise capacity and performance (PMID: 27797728).
- It is effective for improving maximal intensity exercise in trained young males (PMID: 39032921).
- Supplementation enhances performance in high-intensity combat sports, such as judo (PMID: 27601217).
- The effectiveness of beta-alanine for long-distance running and certain cycling time trials remains unproven or negative (PMID: 33305552, 34092191).
Limitations
There is a lack of consensus regarding the efficacy of beta-alanine for long-distance endurance performance.
Safety & Interactions
No specific safety concerns or contraindications were detailed in the provided research summaries.
AI-generated summary from 30 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 97% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 94% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 45% | Tier D (Unknown) | ✅ Supported |
| No Claim | 1% | Tier D (No claim on label) | ✅ Supported |
Research by Topic
Research Evidence (30)
OBJECTIVE: To conduct a systematic review and meta-analysis of the evidence on the effects of β-alanine supplementation on exercise capacity and performance. DESIGN: This study was designed in accordance with PRISMA guidelines. A 3-level mixed effect...
Beta-alanine is a nonessential amino acid that is commonly used to improve exercise performance. It could influence the buffering of hydrogen ions produced during intense exercise and delay fatigue, providing a substrate for increased synthesis of in...
**Ashtary-Larky et al., 2025** | Nutrients | Systematic Review Ashtary-Larky Damoon, Candow Darren G, ... Suzuki Katsuhiko. Effects of Creatine and β-Alanine Co-Supplementation on Exercise Performance and Body Composition: A Systematic Review. Nutrie...
Due to the well-defined role of β-alanine as a substrate of carnosine (a major contributor to H+ buffering during high-intensity exercise), β-alanine is fast becoming a popular ergogenic aid to sports performance. There have been several recent quali...
OBJECTIVES: In official judo competitions, athletes usually engage in 5-7 matches in the same day, performing numerous high-intensity efforts interspersed by short recovery intervals. Thus, glycolytic demand in judo is high and acidosis may limit per...
β-alanine does not have an ergogenic effect by itself, but it does as a precursor for the synthesis of carnosine in human skeletal muscle. β-alanine and carnosine together help improve the muscles' functionality, especially in high-intensity exercise...
**Harlow et al., 2024** | Nutrients | Systematic Review Harlow Jacie, Blodgett Kylie, ... Pojednic Rachele. Dietary Supplementation on Physical Performance and Recovery in Active-Duty Military Personnel: A Systematic Review of Randomized and Quasi-Ex...
This study investigated the effect of beta-alanine supplementation on short-duration sprints and final 4-km simulated uphill cycling time-trial performance during a comprehensive and novel exercise protocol representative of the demands of road-race ...
PURPOSE: This study aimed to describe the kinetics of carnosine washout in human skeletal muscle over 16 wk. METHODS: Carnosine washout kinetics were studied in 15 young, physically active omnivorous men randomly assigned to take 6.4 g·d-1 of β-alani...
Immune system dysregulation is among the many adverse effects incurred by astronauts during space flights. Omega-3 fatty acids, β-alanine, and carnosine are among the many nutrients that contribute to immune system health. For space flight, crewmembe...
Supplementation with β-alanine is becoming a common practice in high-performance athletes. The purpose of the present study was to investigate the effects of a one-week high-dose β-alanine loading phase employing a sustained-release powder on preserv...
A pre-workout supplement's (PWS; 200 mg caffeine, 3.3 g creatine monohydrate, 3.2 g β-alanine, 6 g citrulline malate and 5 g branched chained amino acid (BCAA) per dose) acute effects on the alactic (jumping, sprinting, agility), lactic (Running-Base...
BACKGROUND: β-alanine, a non-essential amino acid found in the diet and produced through nucleotide catabolism, is significant for muscle performance due to its role in carnosine synthesis. This study aims to assess the impact of a 4-week β-alanine s...
**Church et al., 2017** | J Am Coll Nutr | Rct Church David D, Hoffman Jay R, ... Stout Jeffrey R. Comparison of Two β-Alanine Dosing Protocols on Muscle Carnosine Elevations. J Am Coll Nutr. 2017;36(8):608-616. doi:10.1080/07315724.2017.1335250 OBJE...
BACKGROUND: Beta-alanine has become a dietary supplement widely used by athletes due to its ergogenic effect. However, there is still no consensus on the performance benefit of beta-alanine on exercise lasting longer than ten minutes. The present stu...
Introduction: β-alanine (BA) supplementation may improve cognition and mitigate symptoms of anxiety and depression associated with aging, neurological disorders, and physical exertion, which has been attributed to increases in brain carnosine and/or ...
BACKGROUND: Investigations of β-alanine supplementation shows effects on metabolic (aerobic and anaerobic) participation and performance on swimming by a possible blood acidosis buffering. Considering this background, the objective of the present stu...
BACKGROUND: Supplementing β-alanine (BA) improves exercise performance in efforts that are highly dependent on anaerobic glycolysis. As it has not yet been established whether it relates to climbing, the current study aimed to investigate the effects...
To determine the acute effect of low and high-dose BA trials on maximal aerobic speed (MAS) in endurance athletes. We hypothesized that high doses of BA have a greater effect than low doses, both compared to baseline. Twelve male endurance athletes v...
The purpose of this study was to evaluate the effect of 8-week β-alanine supplementation on C-Reactive Protein (CRP), interleukin-6 (IL-6), body composition, and bio-motor abilities in elite male basketball players. Twenty male basketball players (ag...
This study aimed to elucidate the impact of combining Beta-Alanine (BA) supplementation with short sprint interval training on cardiorespiratory fitness, anaerobic power, and bio-motor abilities in volleyball players. Twenty young male athletes were ...
Scientists and coaches seek effective ergogenic aids for performance improvement. Cyclists commonly use β-Alanine, which may enhance post-exercise recovery and physical performance. High-dose β-Alanine supplementation's impact on World Tour cyclists ...
Caffeine and beta-alanine are widely used in multi-ingredient pre-workout supplements believed to enhance resistance training, but their specific role in driving this effect remains unclear. The current study employed a randomized, triple-blinded, pl...
PURPOSE: Athletes often use sport supplements to improve their physical and physiological performance. This randomized, double-blind, placebo (PL) -controlled study aimed to investigate the effects of combined versus single supplementation of creatin...
BACKGROUND: Beta-alanine (βA) is a non-essential amino acid purportedly used to enhance aerobic exercise performance. While previous research indicates the benefits of βA on time to exhaustion (TTE) and aerobic capacity (VO2peak) in adults, evidence ...
BACKGROUND: The topical application of a carnosine gel may increase intramuscular carnosine concentrations and thereby improve exercise performance. This study investigated the effect of a topical carnosine gel on intermittent high-intensity exercise...
BACKGROUND: This study aimed to investigate the effects of a high-dose beta-alanine (BA) supplementation on physical performance, blood lactate concentration, and ratings of perceived exertion (RPE) in trained futsal players. METHODS: Sixteen trained...
**NCT ID**: NCT03803800 **Phase**: NA **Status**: COMPLETED **Enrollment**: 31 **Completion**: 2019-12-09
**NCT ID**: NCT04862533 **Phase**: NA **Status**: COMPLETED **Enrollment**: 80 **Completion**: 2022-10-01
**Hoffman et al., 2006** | Int J Sport Nutr Exerc Metab | Rct Hoffman Jay, Ratamess Nicholas, ... Stout Jeffrey. Effect of creatine and beta-alanine supplementation on performance and endocrine responses in strength/power athletes. Int J Sport Nutr E...
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Frequently Asked Questions
What is beta-alanine and how does it work?
Beta-alanine is a non-essential amino acid that helps your body produce carnosine. This process is important because carnosine helps buffer hydrogen ions in your muscles during intense exercise.
Does beta-alanine improve high-intensity exercise performance?
Yes, there is strong evidence that beta-alanine is an effective aid for improving performance during high-intensity and maximal-intensity activities. It has been shown to improve exercise capacity and performance in activities like combat sports.
Is beta-alanine effective for long-distance running?
The evidence for long-distance or endurance performance, such as 5000m running or cycling, is weak and inconsistent. Some studies have shown no significant improvement for these types of activities.
What is the effective dose of beta-alanine?
Research includes high-dose loading protocols and doses of approximately 3.2g, which is often found in multi-ingredient pre-workout supplements. You should follow the specific protocols used in clinical studies for best results.
Should I take beta-alanine with creatine?
There is moderate evidence that combining beta-alanine with creatine may influence both exercise performance and body composition. This co-supplementation is a common strategy used in fitness supplements.
Are there any safety concerns or side effects with beta-alanine?
There are no specific safety concerns or contraindications detailed in the current research. Based on available data, there are no specific groups identified who should avoid its use.
Answers generated from research evidence. Not medical advice.