Compound or practice · Supplement
Essential Amino Acids (EAAs)
BCAAs done right — all nine essentials, so muscle protein synthesis can actually finish.
- Overall grade
- Grade B
- Last revised
- 1
- graded outcome
- 0
- references listed
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
1 at grade B — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Muscle protein synthesisEvidence grade B
Complete profile
Moderatehigh
The evidence in words
What it is
EAA supplements provide all nine essential amino acids, addressing the completeness flaw of BCAAs.
How it works
A full essential-amino-acid pool lets leucine-triggered muscle protein synthesis run to completion.
What the evidence shows
EAAs stimulate muscle protein synthesis effectively and are useful when whole protein isn't practical (intra-workout, fasted training, clinical low-appetite states). For most people eating enough protein, they're an optional convenience rather than a necessity.
Safety & interactions
Safe.
Bottom line
The evidence-based version of BCAAs. Useful intra-workout, fasted, or when appetite is low; otherwise whole protein does the job.
Related reading
Entries that share this one's tags or conditions.
- BCAAsOverhyped and mostly redundant — if you eat enough protein, BCAAs add little.Evidence grade C
- Casein ProteinThe slow-release milk protein — a small overnight-recovery edge, mostly a convenience choice.Evidence grade B
- Egg ProteinA high-quality dairy-free animal protein — solid, unremarkable, more expensive than whey.Evidence grade B
- Essential Amino Acids (EAAs) for Muscle protein synthesisEvidence grade B — Complete profileEvidence grade B
Sources
This entry lists no references of its own.
Last revised . A grade is this entry's reading of the evidence, not medical advice.