When to take it
Before, during or after training, or between low-protein meals.
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Amino acidsModerate evidence
EAA – essential amino acids
Also known as: 9 essential amino acids
A mix of the nine amino acids the body cannot make and must get from food. Unlike BCAAs, it supplies all the building blocks needed for muscle protein synthesis.
What it is used for
- Stimulating muscle protein synthesis – moderate evidence
- Muscle support in older adults and with low protein intake – moderate evidence
- Advantage over adequate high-quality dietary protein – weak evidence
Forms and how they differ
9-EAA powder
composition and leucine share vary, read the label; often flavoured and sweetened
tablets and capsules
lower dose per piece
Pairs well with
Training; carbohydrates during long endurance sessions.
Do not combine / separate
No need to add BCAAs – EAAs already contain them.
Watch out for
Caution with kidney or liver disease and inherited amino acid disorders (e.g. phenylketonuria). Consult your doctor or pharmacist if you are pregnant, breastfeeding, have kidney or liver disease or take any medicines.
Safety
Do not exceed the label dose.
Practical tip
If food or protein powder is available, complete protein works as well and is usually cheaper.
Products containing EAA – essential amino acids 4
EAA – essential amino acids + Electrolytespowder
EAA – essential amino acids + Creatinepowder
EAA – essential amino acidsfree form
EAA – essential amino acids 9 essential amino acids 12 g9 essential amino acids · 12 g / serving
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check EAA – essential amino acids with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
Acetyl-L-carnitineWeak evidenceAlmond proteinWeak evidenceAmino acid complexWeak evidenceBCAAWeak evidenceBeef proteinModerate evidenceCaseinStrong evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.