Ingredient
BCAAs
What is BCAAs?
BCAAs, or Branched-Chain Amino Acids, are a group of three essential amino acids: leucine, isoleucine, and valine. These amino acids are termed 'branched-chain' due to their chemical structure, which includes a central carbon atom bound to three or more carbon atoms.
BCAAs are commonly used in dietary supplements, particularly those aimed at athletes or bodybuilders, due to their role in muscle protein synthesis and energy production. The health evidence around BCAA supplementation is mixed; while some studies suggest benefits in exercise performance and muscle recovery, others show minimal impacts compared to complete protein sources.
When you see BCAAs on a label, it's often marketed for muscle health or athletic performance. However, it's important to consider them as part of a balanced diet that includes all essential amino acids.
Commonly found in: protein powders, pre-workout supplements, post-workout supplements, meal replacements, energy bars
What to watch
- High doses may lead to gastrointestinal discomfort.
- Imbalance of amino acids from supplementation might affect overall protein synthesis.
Benefits
- May help reduce muscle soreness after exercise.
- Could improve exercise performance in some individuals.
BCAAs are regulated as dietary supplements, which means they are not pre-approved by the FDA for safety or efficacy.
Research includes both supportive and non-supportive findings regarding benefits for muscle growth and recovery.
BCAAs themselves are not animal-derived, but their source in supplements may vary. Vegans should check the label for plant-based sourcing.
Sources: Branched-Chain Amino Acids: Metabolism, Physiological Function, and Application
Scout's take
Branched-chain amino acids (L-Leucine, L-Isoleucine, L-Valine) support muscle protein synthesis and recovery.
Found in 1 product
Scan any product to see every ingredient explained — and healthier swaps.
Download on theApp Store GET IT ONGoogle Play