Dietary Supplements May Increase Your Risk of Cancer

ABC News' Dr. Richard Besser reports on the latest research that may affect your health.
1:28 | 04/21/15

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Transcript for Dietary Supplements May Increase Your Risk of Cancer
A health alert for the millions of Americans taking vitamins. Taking too many supplements can increase the cases of cancer. Taking too many supplements can do the opposite of what you're hoping for. This is very important information. We know from many studies that people who eat lots of fruits and vegetables have a lower risk of heart disease and cancers. The idea was to give member more vitamins and they can prevent cancer. When they do these studies, they can find the opposite. Which supplements are linked to which cancer. Betacarotine to smokers increases the risk of lung cancer. Vitamin E can increase prostate cancer. Folic acid begin to the elderly can increase colon cancer. We reached out to the trade groups the. They didn't respond to us. Are there any groups of people that should take supplements? The best way to get vitamins and minerals is through a balanced diet. If you're a woman and thinking of getting pregnant or are pregnant, you need a multivitamin with folate. If you're on a special diet, like someone who is vegan, you need vitamin B 12. You'll answer a lot of questions on Twitter. I think there will be a lot.

This transcript has been automatically generated and may not be 100% accurate.

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