Back to database
2.5/5 Weak evidence

Liver health evidence brief

Milk thistle

Milk thistle and silymarin have mixed liver-disease research and do not support broad liver detox claims.

Weak for broad liver claims health 6 linked sources Content audit 2026-05-05

Headline Finding

NCCIH notes liver-disease trials are conflicting or too limited; NAFLD meta-analyses show marker signals but not decisive clinical outcomes.

Dose Context

Studies use specific silymarin extracts and doses; generic detox blends do not map cleanly to the research.

Important Caveat

Liver disease, abnormal liver enzymes, hepatitis, alcohol-related disease, and medication toxicity require clinical evaluation, not self-treatment.

Source Drawer

Linked Research

6 papers and evidence links - audit 2026-05-05
  1. Review NCCIH milk thistle overview
  2. Meta-analysis Liver disease meta-analysis
  3. Meta-analysis MASLD/NAFLD meta-analysis
  4. Trial NASH randomized trial
  5. Review Cochrane liver disease review
  6. Review Hepatitis C DARE 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.

Spot An Evidence Issue?

Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.

Report a source or rating issue