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Performance

EAAs (Essential Amino Acids)

Also known as: Essential amino acids, EAA blend

A
Evidence

All 9 essential amino acids. Can replace protein around workouts for lower calories.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

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Primary uses

  • Muscle protein synthesis
  • Intra-workout
  • Low-calorie protein alternative

How it works

  • All 9 required for protein synthesis
  • Rapidly absorbed
  • No digestion required

Dosage

Typical range
10-15g per serving
Timing
Intra-workout, between meals, fasted
With food
Either
Duration
As needed
Special populations
Fasted training, low-calorie dieting

Forms

  • Powder
  • Capsule

Safety

Common side effects

  • GI upset if too much

Contraindications

  • MSUD (rare genetic)

Evidence notes

All essentials = complete stimulus for MPS

Grade A: Multiple well-designed human trials support the main claims.

EAAs (Essential Amino Acids) compared head-to-head

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.