Supplement reference

Milk Thistle

A source-linked reference on Milk Thistle, evidence, safety and product identity. Sources checked 6 September 2026.

Source and review status

Published sources checked

Sources checked on: 6 September 2026

Qualified clinical review: Pending. This page has not been clinically reviewed.

About this source check

AI-assisted editorial source checking covers the cited material and its stated limits. It is not a systematic review, verification of a supplied product, or clinical sign-off.

Editorial role: InfoAddict. Last material change: 6 September 2026. Next source review: 6 March 2027.

Ingredient and preparation

Milk thistle refers to Silybum marianum; silymarin is a mixture of constituents in many extracts.

Sources: National Center for Complementary and Integrative Health

Evidence and limits

NCCIH says there is not enough high-quality evidence for definite conclusions about milk thistle on health conditions. It notes that two NCCIH-funded studies did not show benefit from silymarin for hepatitis C or non-alcoholic steatohepatitis.

Sources: National Center for Complementary and Integrative Health

Safety and a useful record

Herbal products can interact with medicines. Do not use an extract label to self-manage liver disease or replace investigation of abnormal tests.

Sources: National Center for Complementary and Integrative Health, National Center for Complementary and Integrative Health

Record the extract name, standardisation if shown, laboratory context and medicines for a clinician conversation.

Sources: National Center for Complementary and Integrative Health

Published sources

  1. Milk Thistle: Usefulness and Safety

    National Center for Complementary and Integrative Health. Current NCCIH reference; accessed 6 September 2026.

    Supports: Milk-thistle identity, limited clinical evidence and interaction context.

  2. Safe Use of Complementary Health Products and Practices

    National Center for Complementary and Integrative Health. Current NCCIH reference; accessed 6 September 2026.

    Supports: General safety, interaction and contamination context. It does not establish ingredient-specific benefit.

Change history

DateChangeClinical-review status
6 September 2026Source-linked reference publishedPending

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