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HealthThin evidence

Milk thistle (silymarin)

Extract of Silybum marianum containing silymarin, traditionally used for liver complaints.

What the research shows

Mixed or small evidence. The effect is uncertain.

Li (2024) pooled 26 trials with 2375 patients with fatty liver disease and saw shifts in blood values and imaging, without data on disease burden or survival. De Avelar (2017) saw ALT and AST fall, which the authors themselves called clinically irrelevant. In healthy livers nothing has been studied.

Who it makes sense for: People with fatty liver disease or another liver condition, under the supervision of a doctor.

How we weigh evidence

Clinical dosage

0mgLightly dosedEffective doseHigh dose
Minimum effective
200mg
Optimal dose
800mg

Scientific sources

The clinical dosages on this page are based on peer-reviewed research.

This page contains affiliate links. Rankings are purely data-based.

We keep the dosages and values on this page as accurate as possible based on selected studies. New research may change these values. Nothing on this page is medical advice. If you have any doubts, always consult a doctor.

Milk thistle (silymarin): does it work? | WheyWijzer