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2/5 Weak evidence

Body composition evidence brief

BCAAs

Incomplete amino acid supply limits the response compared with complete protein or EAAs.

Usually redundant hypertrophy / recovery 5 linked sources Content audit 2026-05-04

Headline Finding

MPS studies show BCAAs stimulate less complete response than full EAA or complete protein provision.

Dose Context

Prefer complete protein if the goal is muscle gain or recovery.

Important Caveat

Hard to justify for users already eating enough protein.

Source Drawer

Linked Research

5 papers and evidence links - audit 2026-05-04
  1. Trial BCAA MPS trial
  2. Review BCAA review
  3. Review Recovery review overview
  4. Review BCAA review Springer
  5. Review BCAA MPS evidence review

How To Read This Rating

The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.

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