BioStacksBest Milk thistle for Liver
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Clinical dose: 150–600 mg
Milk thistle and liver
Milk thistle is a key nutrient for liver support. Milk thistle contains silymarin, which is studied for liver-protective properties. Generally well tolerated. No established RDA/UL. In clinical studies, milk thistle supports liver health and protection.
How much milk thistle do you need
Research points to 150–600 mg as the effective range for milk thistle. Silymarin extract range for liver support. Lower doses may provide some benefit, but most studies showing clear results used this range.
Which form absorbs best
Avoid milk thistle powder — whole herb — very low silybin content, poor bioavailability. Avoid milk thistle seed — unextracted seed — very low bioavailability. The most bioavailable options are siliphos (silybin phytosome) or standardized silymarin (80%).
What the research says
The clinical evidence for milk thistle in liver is moderate. Multiple clinical trials on liver protection, but study quality and results are inconsistent Learn more
