Milk thistle is historically known as a liver tonic. Milk thistle has been shown to be effective in reducing liver cellular damage and improving outcomes in animals exposed to toxic Amanita phalloides mushrooms.
Milk thistle contains biologically active flavanoids with anti-oxidant properties.
There are several studies showing a beneficial effect with those suffering from liver disease, where there is a limited arsenal of traditional medical treatments. Milk thistle appears to be well tolerated and may prolong life in those with severe liver dysfunction. The best cure for liver disease is prevention. Excessive alcohol use, medication overdose, and some forms of hepatitis are preventable causes of liver disease. Current recommendations are that men consume no more than 2 drinks a night and women consume no more than one drink a night.