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2/5 Weak evidence

Body composition evidence brief

Digestive enzymes / protease

Some protease studies show amino-acid absorption or soreness-marker signals, but direct strength, hypertrophy, or recovery outcomes remain weak.

Absorption signal, weak outcomes hypertrophy / recovery / health 5 linked sources Content audit 2026-05-04

Headline Finding

Small RCTs show absorption or soreness-marker signals; reviews do not establish strength or hypertrophy outcomes.

Dose Context

Effects are enzyme- and protein-specific; protease blends, lactase, broad digestive enzymes, and probiotic blends are different products.

Important Caveat

Most relevant for a clearly defined digestive-tolerance problem, not for promising more muscle from the same protein.

Source Drawer

Linked Research

5 papers and evidence links - audit 2026-05-04
  1. Safety Protease safety RCT
  2. Trial Microbial protease absorption RCT
  3. Trial Protease EIMD pilot trial
  4. Meta-analysis Protein recovery meta-analysis
  5. Meta-analysis EIMD nutrition umbrella 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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