EAAs / BCAAs
supplementessential / branched-chain amino acids
Performance / muscle
Research status · Dietary supplement
Dietary supplement.
Free-form amino acids marketed around training. If daily protein is already adequate, they add little — most useful for training fasted or when whole protein isn't practical. EAAs (all nine essentials) are generally preferred over BCAAs alone.
How it works
Supply amino acids (notably leucine) that stimulate muscle protein synthesis without whole food.
Commonly discussed use cases
- Fasted training
- Between-meal amino support when protein is low
Supposed / potential benefits
- Convenient amino availability around training when protein intake is limited
Common side effects
- Generally well tolerated
Warnings & contraindications
- Largely redundant if you already hit your protein target
Typical timing considerations
Around training sessions; follow product guidance.
Administration route
Oral (drink mix)
Questions to ask your clinician
- Given my protein intake, do these add anything?
Commonly tracked in Reta
Tracking fields organize user-entered, clinician-directed routines — Reta never recommends or computes doses.
Track this in Reta
Beta members get a ready-made tracker for EAAs / BCAAs — schedule, dose log, reminders, and check-ins — for organizing a clinician-directed routine. Personal tracking is available to everyone during the Public Beta.
Reta is a tracking and education tool — not a medical provider. Nothing here is a diagnosis, treatment, prescription, or dosing recommendation. Peptides and medications should only be used under the direction of a licensed clinician. Talk to a qualified clinician before starting, stopping, combining, or changing anything. Many compounds below are not FDA-approved for human use; some are investigational or sold through unregulated channels where purity and dosing are not guaranteed.