Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD
BCAAs / EAAs
LIMITED EVIDENCEAmino AcidLast updated April 5, 2026
AVELOR SUMMARY
BCAAs (leucine, isoleucine, valine) are three essential amino acids heavily marketed for muscle growth and recovery. Our honest assessment: if you eat enough protein (1.6g/kg/day), BCAAs are redundant. You're already getting them from food. The evidence for BCAAs as a standalone supplement is weak compared to simply eating adequate protein or supplementing with complete EAAs. EAAs (all 9 essential amino acids) are the better choice if you need an amino acid supplement.
EVIDENCE GRADES
Muscle Protein Synthesis (vs complete protein)No additional benefit if protein is adequate
D
Muscle SorenessLimited benefit
C
Exercise PerformanceNo meaningful effect in most studies
D
Muscle MassNo additional benefit with adequate protein
D
OPTIMAL DOSAGE
If supplementing BCAAs: 5-20g/day (2:1:1 leucine:isoleucine:valine ratio most studied)
If supplementing EAAs: 6-12g per serving
Better alternative: 20-40g whey protein (contains BCAAs plus all other amino acids)
Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated: April 5, 2026
Not medical advice. Based on published clinical research and systematic reviews.