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A 38-year-old male asked:

am i harming my body by taking food based multivitamin and fish oil? i heard on the news that overdose of certain vitamins can cause cancer.

2 doctor answers3 doctors weighed in
Dr. Michael Porayko
Internal Medicine 40 years experience
Vitamin E: Ingestion of excessive amounts of vitamin e has been associated with increased incidence of prostate cancer.
Dr. Arthur Heller
Gastroenterology 43 years experience
Probably not, but...: Probably not helping much either, if diverse diet, no significant liver, kidney, bowel disease. If compelled yo take a supplement, stay away from megadoses to minimize risk of imbalance or overdosing. High doses can cause gut complaints, like nausea, gas, bloat. Supplements isn't same as diet intake, and in studies results aren't as good (generally); could be if eat better, take bettercare ofself.

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Last updated Apr 23, 2017

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