No Convincing Evidence That Supplements Help Prevent Cancer | Lung Cancer Dispatch |

A review by a panel of independent U.S. experts concludes that there is not enough evidence to recommend either for or against the use of most vitamin or mineral supplements to reduce the risk of cancer. However, the panel’s guidelines advise against the use of beta-carotene (a precursor of vitamin A) and vitamin E for cancer prevention, because there is relatively clear evidence that neither is effective. Indeed, beta-carotene supplements appear to increase lung cancer risk in people already at high risk of the disease. Instead, the panel recommends that healthy adults without nutritional deficiencies get their nutrients by eating a varied diet to minimize the risk of chronic disease, including cancer.