Vitamin Supplements May Boost Cancer Risk
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People who take vitamin and antioxidant supplements in the hope they&#39;re reducing their risk of gastrointestinal cancer are more likely to die of the disease than those
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The adverse effects of taking large quantities of beta-carotene and retinol on the rate of lung cancer and death in smokers seem to persist for years after these supplements
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Washington - Dietary supplements of vitamin E, recommended by some doctors to reduce the risk of heart disease, can be dangerous in high doses, according to a study published on Wednesday.
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FRIDAY, Feb. 9 (HealthDay News) -- Patients in phase 1 cancer trials may be skewing the results if they are also taking vitamins, herbal preparations, minerals and other dietary supplements, researchers report.
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People who take regular doses of vitamin D have a significantly lower risk of dying early than those who do not use supplements, according to new research published on Monday.
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High-dose vitamin E supplements taken daily can increase a person&#39;s risk of premature death, researchers said Wednesday. People who take daily doses of 400 international
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Vitamin E supplements, which  millions take in the hope of longer, healthier lives, may do  more harm than good, researchers reported on Wednesday.
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Diets rich in calcium reduce women's risk of colorectal cancer, and women who also take calcium supplements can cut their risk even more, researchers said on Thursday.
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Many children with chronic medical conditions such as cancer and cystic fibrosis may be taking dietary supplements that are not part of their prescribed treatment, a new survey shows.
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Your parents may still tell you to take your vitamins, but a cancer doctor might be less enthusiastic. A recent study that found calcium and vitamin D supplements don&#039;t reduce the odds of developing breast cancer is the latest to deflate the cancer-prevention claims of some vitamin proponents.
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People taking moderately high doses of vitamin E to improve their health might just be doing the opposite, according to new research that links vitamin E to an increased death risk.
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Many cancer survivors gobble down vitamins, but research shows that sometimes supplements can do more harm than good.
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The combination of vitamin E and lycopene -- the chemical that gives tomatoes their rich, red color -- may significantly inhibit the growth of prostate tumors, a new study finds.
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Women with higher or lower blood levels of vitamin A than average appear to be at increased risk of hip fracture, according to a report in the American Journal of Medicine.
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While there&#39;s no surefire way to prevent cancer, many kinds of foods can help lower the risk of certain cancers. Research shows that people who eat diets rich in plant foods
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High doses of vitamin E, which millions of people take to protect themselves against various diseases, may increase the overall risk of dying, researchers reported today.
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Scientists are testing the impact of  vitamin E and a synthetic version of lycopene, a compound in  tomatoes, in cancer patients after they found that the  combination slowed the growth of prostate tumors in mice.