---
title: "Beta-Alanine — Evidence, Benefits & Where to Buy | Magellan"
description: "Beta-Alanine — Beta-alanine is a non-essential (non-proteinogenic) amino acid that serves as the rate-limiting precursor for the synthesis of carnosine,…"
url: "https://magellanlongevity.com/p/137.md"
canonical: "https://magellanlongevity.com/p/137.html"
html: "https://magellanlongevity.com/p/137.html"
type: "product"
section: "Nutraceuticals & Cellular Energizers"
evidence_grade: "Moderate evidence"
evidence_tier: "moderate"
citations: 21
product_id: 137
price_usd: 23.63
updated: 2026-09-02
author: "Gabriel Radu, DO"
author_credentials: "Physiatrist (PM&R). NY medical license 275110. NPI 1376861765."
publisher: "Magellan Longevity"
content_format: "markdown"
license: "Educational content — not medical advice"
---

# Beta-Alanine

[Home](https://magellanlongevity.com/) › [Nutraceuticals & Cellular Energizers](https://magellanlongevity.com/c/1.md) › Beta-Alanine

**HTML version:** https://magellanlongevity.com/p/137.html · **In the Magellan app:** https://magellanlongevity.com/#/product/137

## Key facts

| Field | Value |
| --- | --- |
| Product | Beta-Alanine |
| Category | [Nutraceuticals & Cellular Energizers](https://magellanlongevity.com/c/1.md) |
| Evidence grade | Moderate evidence (B) |
| Peer-reviewed citations | 21 |
| Typical listed price | $23.63 (check the live price) |
| Where to buy | [Search Amazon](https://www.amazon.com/s?k=Beta-Alanine&tag=magellanlong-20) |
| Catalog ID | 137 |

## What it is

Beta-alanine is a non-essential (non-proteinogenic) amino acid that serves as the rate-limiting precursor for the synthesis of carnosine, a histidine-containing dipeptide stored at high concentrations in skeletal muscle. Chronic oral supplementation (typically about 2-6 g/day for several weeks) can raise intramuscular carnosine content by roughly 20-80%. Carnosine acts primarily as an intracellular pH buffer during high-intensity exercise and also possesses metal-chelating, antioxidant, and anti-glycation properties.

## Its role in longevity

Meta-analyses of controlled trials indicate that beta-alanine produces a small but statistically significant overall ergogenic effect, most evident for high-intensity exercise lasting roughly 1-4 minutes, where it can increase exercise capacity and time to exhaustion and delay neuromuscular fatigue; effects on maximal strength are inconsistent. In older adults, supplementation raises muscle carnosine and may improve exercise capacity, though systematic review finds no clear benefit for muscle strength or everyday functional performance, and early findings on brain structure and metabolic health are preliminary. A dedicated safety meta-analysis found no adverse effects on clinical blood, liver or kidney markers; the main side effect is transient paresthesia (skin tingling), which can be minimized with divided or sustained-release doses. This evidence describes the compound beta-alanine and its carnosine mechanism rather than this specific commercial product.

## Evidence grade: Moderate evidence

- **What the grade means:** Curated grade based on the human and mechanistic evidence for this compound.
- **Dose used in studies:** 3.2-6.4 g/day for at least 2-4 weeks
- **What this grade does not say:** Strong meta-analytic support for a small improvement in high-intensity exercise capacity (efforts of about 0.5-10 minutes); in older adults it raises muscle carnosine and may help exercise capacity, but strength, daily function, cognition and disease outcomes are unproven. Safety is clean apart from harmless transient tingling.

## Where it comes from without a bottle

Food, exercise and behaviour routes to the same pathway, each with its citation.

| Natural source | How it works | Citation |
| --- | --- | --- |
| Beef, pork, poultry & fish (carnosine) | Beta-alanine is the rate-limiting building block of muscle carnosine. You can't eat free beta-alanine easily, but meat and fish are packed with carnosine itself; digesting them releases beta-alanine, which is why meat-eaters carry roughly double the muscle carnosine of vegetarians. | Amino Acids 2012 [PMID 22327512](https://pubmed.ncbi.nlm.nih.gov/22327512/) |
| Omnivorous (meat-containing) diet | Brain and muscle carnosine differ between omnivores and vegetarians precisely because meat supplies the carnosine/beta-alanine precursors. If you eat meat, fish, or poultry regularly you already get a steady beta-alanine supply; vegetarians are the group a supplement helps most. | PLoS One 2015 [PMID 25875297](https://pubmed.ncbi.nlm.nih.gov/25875297/) |

### What those papers actually say

1. **Beef, pork, poultry & fish (carnosine)**
   Amino Acids 2012 · [PMID 22327512](https://pubmed.ncbi.nlm.nih.gov/22327512/) · [DOI 10.1007/s00726-012-1233-y](https://doi.org/10.1007/s00726-012-1233-y)

   > In vegetarians, M-Carn is limited by hepatic synthesis of β-alanine, whereas in omnivores this is augmented by the hydrolysis of dietary supplied HCD's.

2. **Omnivorous (meat-containing) diet**
   PLoS One 2015 · [PMID 25875297](https://pubmed.ncbi.nlm.nih.gov/25875297/) · [DOI 10.1371/journal.pone.0123857](https://doi.org/10.1371/journal.pone.0123857)

   > Two independent studies were conducted to examine the effects of 28 d of beta-alanine supplementation... on brain homocarnosine/carnosine signal in omnivores and vegetarians.

## In the news

- **Beta-Alanine — A Beginner's Guide** — Healthline 2023 [Read it](https://www.healthline.com/nutrition/beta-alanine-101)
  > Beta-alanine enhances performance by increasing exercise capacity and decreasing muscle fatigue.
- **Beta-alanine: Uses and Risks** — WebMD 2025 [Read it](https://www.webmd.com/vitamins-and-supplements/beta-alanine-uses-and-risks)
  > A review of studies of the beta-alanine supplement shows that it doesn't increase muscle strength but appears to slightly increase the amount of time an athlete can perform high-intensity exercises, such as weight lifting and sprinting, before getting exhausted.

## The research

Peer-reviewed studies on the active compound. Quotes are verbatim from the cited abstract. Research describes the active mechanism and is not a claim about this specific product.

### Cited studies

1. **Evidence: carnosine precursor, pH buffer**
   J Int Soc Sports Nutr 2018 · [PMID 29996843](https://pubmed.ncbi.nlm.nih.gov/29996843/) · [DOI 10.1186/s12970-018-0238-7](https://doi.org/10.1186/s12970-018-0238-7)

   > beta-alanine increased exercise capacity and eliminated endurance exercise induced declines in executive function

2. **beta-alanine supplementation to improve exercise capacity and performance: a systematic review and meta-analysis**
   Br J Sports Med 2016 · [PMID 27797728](https://pubmed.ncbi.nlm.nih.gov/27797728/) · [DOI 10.1136/bjsports-2016-096396](https://doi.org/10.1136/bjsports-2016-096396)

   > beta-alanine had a significant overall effect on exercise capacity and performance

3. **Effect of Beta-Alanine Supplementation on Maximal Intensity Exercise in Trained Young Males: A Meta-Analysis**
   Int J Sport Nutr Exerc Metab 2024 · [PMID 39032921](https://pubmed.ncbi.nlm.nih.gov/39032921/) · [DOI 10.1123/ijsnem.2024-0027](https://doi.org/10.1123/ijsnem.2024-0027)

   > overall effect size of 0.39 in favor of beta-alanine supplementation versus placebo

4. **Effects of β-alanine supplementation on exercise performance: a meta-analysis.**
   Amino Acids 2012 · [PMID 22270875](https://pubmed.ncbi.nlm.nih.gov/22270875/) · [DOI 10.1007/s00726-011-1200-z](https://doi.org/10.1007/s00726-011-1200-z)

   > The median effect of β-alanine supplementation is a 2.85% (-0.37 to 10.49%) improvement in the outcome of an exercise measure, when a median total of 179 g of β-alanine is supplemented.

5. **Effect of Carnosine or β-Alanine Supplementation on Markers of Glycemic Control and Insulin Resistance in Humans and Animals: A Systematic Review and Meta-analysis.**
   Adv Nutr 2021 · [PMID 34333586](https://pubmed.ncbi.nlm.nih.gov/34333586/) · [DOI 10.1093/advances/nmab087](https://doi.org/10.1093/advances/nmab087)

   > Supplementation with carnosine or β-alanine may reduce fasting glucose, HbA1c, and HOMA-IR in humans and rodents, and fasting insulin in humans; both compounds show potential as therapeutics to improve glycemic control and insulin resistance.

6. **Individual Participant Data Meta-Analysis Provides No Evidence of Intervention Response Variation in Individuals Supplementing With Beta-Alanine.**
   Int J Sport Nutr Exerc Metab 2021 · [PMID 34098531](https://pubmed.ncbi.nlm.nih.gov/34098531/) · [DOI 10.1123/ijsnem.2021-0038](https://doi.org/10.1123/ijsnem.2021-0038)

   > Analyses showed a group effect of BA supplementation on TTE (7.7, 95% credible interval [CrI] [1.3, 14.3] s) and muscle carnosine (18.1, 95% CrI [14.5, 21.9] mmol/kg DM).

7. **Effect of Supplements on Endurance Exercise in the Older Population: Systematic Review.**
   Int J Environ Res Public Health 2020 · [PMID 32698345](https://pubmed.ncbi.nlm.nih.gov/32698345/) · [DOI 10.3390/ijerph17145224](https://doi.org/10.3390/ijerph17145224)

   > Caffeine and high protein supplement with beta-alanine may provide positive effects in the older population.

8. **Beta-alanine supplementation, muscle carnosine and exercise performance.**
   Curr Opin Clin Nutr Metab Care 2015 · [PMID 25474013](https://pubmed.ncbi.nlm.nih.gov/25474013/) · [DOI 10.1097/MCO.0000000000000127](https://doi.org/10.1097/MCO.0000000000000127)

   > It has been repeatedly demonstrated that chronic beta-alanine supplementation can augment intramuscular carnosine content.

9. **Can the Skeletal Muscle Carnosine Response to Beta-Alanine Supplementation Be Optimized?**
   Front Nutr 2019 · [PMID 31508423](https://pubmed.ncbi.nlm.nih.gov/31508423/) · [DOI 10.3389/fnut.2019.00135](https://doi.org/10.3389/fnut.2019.00135)

   > Oral beta-alanine ingestion increases muscle carnosine content although large variation in response to supplementation exists and the amount of ingested beta-alanine converted into muscle carnosine appears to be low.

10. **Role of beta-alanine supplementation on muscle carnosine and exercise performance.**
    Med Sci Sports Exerc 2010 · [PMID 20479615](https://pubmed.ncbi.nlm.nih.gov/20479615/) · [DOI 10.1249/MSS.0b013e3181c74e38](https://doi.org/10.1249/MSS.0b013e3181c74e38)

    > In conclusion, beta-alanine supplementation seems to be a safe nutritional strategy capable of improving high-intensity anaerobic performance.

11. **Muscle carnosine metabolism and beta-alanine supplementation in relation to exercise and training.**
    Sports Med 2010 · [PMID 20199122](https://pubmed.ncbi.nlm.nih.gov/20199122/) · [DOI 10.2165/11530310-000000000-00000](https://doi.org/10.2165/11530310-000000000-00000)

    > Muscle carnosine content is lower in women, declines with age and is probably lower in vegetarians, whose diets are deprived of beta-alanine.

12. **beta-Alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters.**
    J Appl Physiol (1985) 2007 · [PMID 17690198](https://pubmed.ncbi.nlm.nih.gov/17690198/) · [DOI 10.1152/japplphysiol.00397.2007](https://doi.org/10.1152/japplphysiol.00397.2007)

    > beta-Alanine supplementation significantly increased the carnosine content in both the soleus (+47%) and gastrocnemius (+37%).

13. **Beta-Alanine for Improving Exercise Capacity, Muscle Strength, and Functional Performance of Older Adults: A Systematic Review.**
    J Aging Phys Act 2024 · [PMID 39724872](https://pubmed.ncbi.nlm.nih.gov/39724872/) · [DOI 10.1123/japa.2024-0118](https://doi.org/10.1123/japa.2024-0118)

    > Overall, exercise capacity may be improved following supplementation protocols with dosages ranging from 2.4 to 3.2 g/day. Muscle strength and functional performance do not seem to be improved by beta-alanine since these tasks are not significantly impacted by acidosis buildup.

14. **Beta-alanine (Carnosyn™) supplementation in elderly subjects (60-80 years): effects on muscle carnosine content and physical capacity.**
    Amino Acids 2011 · [PMID 22143432](https://pubmed.ncbi.nlm.nih.gov/22143432/) · [DOI 10.1007/s00726-011-1190-x](https://doi.org/10.1007/s00726-011-1190-x)

    > In summary, the current data indicate for the first time, that beta-alanine supplementation is effective in increasing the muscle carnosine content in healthy elderly subjects, with subsequent improvement in their exercise capacity.

15. **The Top 5 Can't-Miss Sport Supplements.**
    Nutrients 2024 · [PMID 39408214](https://pubmed.ncbi.nlm.nih.gov/39408214/) · [DOI 10.3390/nu16193247](https://doi.org/10.3390/nu16193247)

    > Beta-alanine, when combined with the amino acid histidine, elevates intramuscular carnosine, which acts as a buffer in skeletal muscles and delays fatigue during high-intensity exercise by neutralizing hydrogen ions.

16. **Physiology and pathophysiology of carnosine.**
    Physiol Rev 2013 · [PMID 24137022](https://pubmed.ncbi.nlm.nih.gov/24137022/) · [DOI 10.1152/physrev.00039.2012](https://doi.org/10.1152/physrev.00039.2012)

    > For several pathologies, such as diabetes and its complications, ocular disease, aging, and neurological disorders, promising preclinical and clinical results have been obtained.

17. **Ergogenic Aids to Improve Physical Performance in Female Athletes: A Systematic Review with Meta-Analysis.**
    Nutrients 2022 · [PMID 36615738](https://pubmed.ncbi.nlm.nih.gov/36615738/) · [DOI 10.3390/nu15010081](https://doi.org/10.3390/nu15010081)

    > Aerobic tests could be improved with the use of taurine, caffeine, and beta-alanine.

18. **A Systematic Risk Assessment and Meta-Analysis on the Use of Oral β-Alanine Supplementation.**
    Advances in nutrition (Bethesda, Md.) 2019 · [PMID 30980076](https://pubmed.ncbi.nlm.nih.gov/30980076/)

    > A safety meta-analysis found oral beta-alanine had no adverse effects on clinical blood, liver or kidney markers; transient paresthesia (tingling) was the only consistent side effect.

19. **The absorption of orally supplied beta-alanine and its effect on muscle carnosine synthesis in human vastus lateralis.**
    Amino acids 2006 · [PMID 16554972](https://pubmed.ncbi.nlm.nih.gov/16554972/)

    > Human muscle-biopsy work showed orally supplied beta-alanine is absorbed and taken up by skeletal muscle, where it increases carnosine synthesis, the basis of chronic dosing protocols.

20. **β-Alanine supplementation improves fractional anisotropy scores in the hippocampus and amygdala in 60-80-year-old men and women.**
    Experimental gerontology 2024 · [PMID 38971131](https://pubmed.ncbi.nlm.nih.gov/38971131/)

    > In a 10-week randomized trial in 60-80-year-olds, beta-alanine improved hippocampal and amygdala fractional anisotropy on DTI, an early hint of central effects whose cognitive meaning is unproven.

21. **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 2025 · [PMID 40999397](https://pubmed.ncbi.nlm.nih.gov/40999397/)

    > A 2025 meta-analysis of randomized trials evaluated carnosine or beta-alanine supplementation for glycemic control in prediabetes and type 2 diabetes, an emerging and still-preliminary research direction.

## Where to buy

[Search Amazon for Beta-Alanine](https://www.amazon.com/s?k=Beta-Alanine&tag=magellanlong-20) — affiliate search link.

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## Scope and disclosures

Educational information, not medical advice. Nothing here is intended to diagnose, treat, cure, or prevent any disease. Talk to your physician before starting any supplement or device, especially if you are pregnant, nursing, or taking medication.

Editorial firewall: evidence grades are assigned from the published research and are independent of any affiliate commission. As an Amazon Associate, Magellan Longevity earns from qualifying purchases.

Reviewed for accuracy by a board-certified physician (DO).