Amino acids (BCAA/EAA)
Amino acids are protein's building blocks; BCAA/EAA are used around exercise. If protein intake is adequate, added need is lower.
What it is
Powders/capsules of essential amino acids.
Role in the body
Serve as building blocks for protein synthesis.
Why people consider it
Considered as convenient fuel around workouts.
Food sources
- Meat
- Fish
- Eggs
- Soy
Typical labeled usage
Follow the labeled serving.
Recommended amount
Common range5–10 g / serving (EAA/BCAA)
Around trainingBefore/after training or as a snack
Amounts are common educational ranges based on public reference values and product labels — not individual medical advice. If you have a condition, take medication, or are pregnant or breastfeeding, consult a physician or pharmacist.
When people take it
Around exercise.
Evidence summary
With adequate protein, extra BCAAs add limited benefit
Moderate evidenceWhen total protein is met, added benefit tends to be small.
Who should exercise caution
Who should exercise caution
- Consult a physician if you have kidney disease
Potential medication interactions
- Few notable general interactions
Possible side effects
- Occasional stomach upset
Products & brands
Related articles & packs
Monthly packs
References
- Dietary Supplement Fact Sheets — NIH Office of Dietary Supplements