The Samarin name identifies the previous article; it does not verify a particular product's ingredients or status. Earlier assurances about liver repair, disease prevention and absence of side effects have been withdrawn.
Evidence and limitations
NCCIH reports insufficient high-quality evidence for definite conclusions about milk thistle's health effects. Liver-disease studies are limited or conflicting. This is not evidence that a supplement makes other substance use safe.
How should you use this information?
Use this information to prepare questions, not to diagnose a condition or prescribe treatment. Tell a health professional about relevant medicines, supplements and symptoms. This page provides no drug regimen or product endorsement.
Source: NCCIH: milk thistle evidence and safety
Content revised on 30 August 2026. General information; not a clinician-reviewed treatment plan.