Ashwagandha
an Ayurvedic herb. Herbs & mushrooms.
- Verdict
- UnclearThere isn't enough human evidence to say either way.
- How sure
- Rung 1 · UnprovenLab or animal data only, or never directly tested in people.
The rung shows how sure the science is, not how big the effect is. How to read these ratings
Cancers affected
None shown in people
What the evidence shows
Compounds such as withaferin A slow tumors in animal models. No human trial has shown it prevents or treats cancer. Liver injury typically appeared 2 to 12 weeks after starting.
What to do
Avoid it if you have liver disease, and during cancer treatment unless your team approves.
Sources
Spotted an error? Tell us and we’ll check it against the sources.
Related
Every supplement we rated, or follow one cancer step by step: breast cancer, colorectal cancer, lung cancer and prostate cancer.