Milk thistle
silymarin. Herbs & mushrooms.
- Verdict
- UnclearThere isn't enough human evidence to say either way.
- How sure
- Rung 2 · LimitedFew, small or conflicting human studies, or only indirect measures such as blood markers.
The rung shows how sure the science is, not how big the effect is. How to read these ratings
Cancers affected
None shown; side effects of treatment
What the evidence shows
Small trials only. In children with leukemia, silymarin reduced chemotherapy's effects on the liver without harming treatment. In 30 people with head and neck cancer, it lowered rates of radiation mouth sores. Very few side effects were reported.
What to do
Not shown to treat cancer. If you'd like to try it for side effects, ask your care team first.
Sources
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Related
Every supplement we rated, or follow one cancer step by step: breast cancer, colorectal cancer, lung cancer and prostate cancer.