# Beta-Alanine: Muscle Power Boost

> Beta-alanine supplements may improve muscle endurance and power for athletes.
- Title: Beta-Alanine: Muscle Power Boost · Men's Health | Shortify
- Summary: Beta-alanine supplements may improve muscle endurance and power for athletes. Beta-alanine helps athletes build muscle endurance and power by increasing…
- Keywords: beta-alanine, carnosine, muscle endurance, muscle power, athletes, supplements, protein, Muscle, Power, Boost, Men's Health
- Source: Men's Health — https://menshealth.com/nutrition/a74038454/what-is-beta-alanine-building-muscle
- Author: Perri O. Blumberg
- Published: 2026-10-07T14:43:36+00:00
- Read time: 1 min
- Topics: beta-alanine, carnosine, muscle endurance, muscle power, athletes, supplements, protein
## What Is Beta-Alanine?
Beta-alanine is a nonessential amino acid your body can naturally produce through food alone.

> BETA-ALANINE IS A nonessential amino acid, meaning your body can naturally produce all it needs through food alone
## How Does Beta-Alanine Work?
It helps create carnosine, a molecule stored in muscles that improves performance and reduces fatigue.

> Beta-alanine is used to synthesize carnosine, a molecule that is stored in muscles and helps improve performance
## Benefits for Athletes
Research shows beta-alanine boosts muscular endurance and power, especially for fast-twitch muscle fibers.

> Researchers studying beta-alanine’s effects on athletes found potential benefits for sustaining muscular endurance and power
## Beta-Alanine vs. Creatine
Beta-alanine is not creatine; both are amino acids but work differently to improve athletic performance.

> Beta-alanine is an amino acid that is a building block of carnosine, while creatine is a molecule made up of three different amino acids
## Side Effects of Beta-Alanine
High doses cause tingling (paresthesia), but it is generally safe at recommended levels.

> Problems start to come up when you’re taking a single high dose. The most common side effect is paresthesia, or tingling of the skin
## Food Sources of Beta-Alanine
Beef, chicken, fish, and dairy contain beta-alanine, but vegans may need supplements.

> Among the top food sources of carnosine (and thus beta-alanine) are animal products, including beef, chicken (and chicken broth), and fish
## When to Take Beta-Alanine
Vegans and those with low dietary intake may benefit from supplements for better muscle performance.

> The two cases where you may want to consider beta-alanine supplements are if you’re a vegan/vegetarian athlete or if your doctor recommends it
## Key takeaway

Beta-alanine helps athletes build muscle endurance and power by increasing carnosine levels in muscles.