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2.5/5 Weak evidence

Recovery evidence brief

N-acetylcysteine

May affect oxidative-stress, lactate, or soreness markers, but practical performance benefits are not reliable enough for broad use.

Unclear performance value endurance / recovery 5 linked sources Content audit 2026-05-04

Headline Finding

Meta-analyses show biomarker signals, but performance and recovery outcomes are inconsistent.

Dose Context

Protocols vary widely; antioxidant timing matters around adaptation-focused training.

Important Caveat

This is not a daily recovery shortcut; side effects, medications, and adaptation tradeoffs need context.

Source Drawer

Linked Research

5 papers and evidence links - audit 2026-05-04
  1. Meta-analysis Performance meta-analysis
  2. Meta-analysis 2024 biomarker meta-analysis
  3. Full text 2024 full text
  4. Review Redox regulation review
  5. Review Dietary thiols 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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