Is Milk Thistle From Cow's Milk?

Milk thistle has nothing to do with cow's milk or any other kind of milk. An herb with over 2,000 years of medicinal use, milk thistle is a flowering, quick-spreading herb native to the Mediterranean region. Milk thistle is often referred to as silymarin, a flavonoid found in the seeds of the plant. Its comes from the milk-like liquid that comes from the crushed leaves of the plant.