Jarrow Formulas Milk Thistle Supplement 150 mg. 30:1 Milk Thistle Extract Standardized to 80% Total Flavonoids, Dietary Supplement for Liver Function Support, 200 Veggie Capsules, Up to 200 Day Supply

Clinical trials typically use 420-600mg silymarin daily (divided into 2-3 doses). Jarrow Formulas Milk Thistle 150mg delivers 150mg silymarin (80% standardized) per capsule, which we classify as Subtherapeutic relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.

Yes — Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Yes, milk thistle is generally considered safe for daily use. Jarrow Formulas Milk Thistle 150mg provides a well-tolerated dose of silymarin that has been used safely in clinical studies for extended periods.

Milk thistle can interact with certain medications metabolized by the liver, including some statins and blood thinners. Consult your healthcare provider before combining Jarrow Milk Thistle with any prescription medications.

Side effects are rare but may include mild digestive upset, bloating, or diarrhea. These effects are typically temporary and resolve as your body adjusts to the supplement.

Milk thistle has not been adequately studied in pregnant or breastfeeding women. It is best to avoid this supplement during pregnancy and nursing unless directed by a healthcare provider.

Milk thistle belongs to the Asteraceae/Compositae plant family, which includes ragweed, daisies, and chrysanthemums. If you have allergies to these plants, you may want to avoid milk thistle or start with a small dose to test tolerance.

The label recommends 1 capsule per day, but many users take 1-3 capsules daily to reach the clinical dose range of 150-450mg silymarin. Start with one capsule and increase as needed.