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Are Vitamin Supplements a Bad Idea for Cancer Patients?


This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.

Millions of U.S. cancer survivors take vitamin supplements. However, there is little evidence that supplements help, and worries that some may actually fuel the disease.

A review of 32 studies conducted between 1999 and 2006 found that 64 percent to 81 percent of cancer survivors take extra vitamins or minerals (excluding multivitamins). But little is known about how megadoses of vitamins affect cancer.


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