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Botanical

Milk Thistle (Silymarin)

Also known as: Silybum marianum, Silymarin, Silybin, Milk Thistle Extract (Silybum marianum)

A
Evidence

Milk thistle extract contains silymarin, a flavonoid complex traditionally used to support liver health and function. Clinical evidence suggests modest benefits for liver support, though results remain mixed across studies.

Primary uses

  • Liver protection
  • Liver regeneration
  • Toxin exposure
  • Alcohol support
  • Liver health support
  • Hepatic function
  • Antioxidant support
  • Liver detoxification

How it works

  • Protects liver cell membranes
  • Stimulates protein synthesis for regeneration
  • Antioxidant in liver tissue
  • May help with insulin sensitivity

Dosage

Typical range
200-400mg standardized extract 2-3x daily
Timing
With meals
With food
Yes, enhances absorption
Duration
Long-term use safe and appropriate
Special populations
Those with liver concerns, alcohol users, medication users

Forms

  • Standardized extract 70-80% silymarin
  • Phytosome (silybin-PC)
  • Seed extract
  • Powder· 70/100
  • Capsule· 70/100
  • Tablet· 70/100
  • Liquid extract· 70/100
  • Standardized extract· 70/100

Safety

Common side effects

  • Rare: mild GI upset
  • Allergic reactions (ragweed family)

Contraindications

  • Ragweed/daisy allergy

Evidence notes

Strong evidence for liver protection

Grade A: Multiple well-designed human trials support the main claims.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.