Though the benefits of multivitamins cannot be understated for some people, doctors have begun to caution older women against taking these supplements every day, as recent research has linked the pills to a higher occurrence of breast cancer.
According to a study published in the American Journal of Clinical Nutrition, women who took multivitamins daily were 19 percent more likely to develop breast cancer than their counterparts who did not take the supplements, RedOrbit.com reports.
"If the association is causal, using multivitamins would have a modest effect on breast cancer risk for any one woman," Dr Susanna C. Larsson, the lead researcher and professor at the Karolinska Institute in Stockholm, told the news source.
Larsson and her colleagues studied more than 35,000 Swedish women between the ages of 49 and 83, all of whom were cancer-free at the beginning of the study, for a 10-year period.
Of the 9,000 women who took vitamins, 293 developed breast cancer, while only 681 of the remaining 26,000 women developed the disease.
While the scientists say that more research is needed to confirm a correlation between breast cancer and multivitamins, for the meantime, Larsson advises that "If you eat a healthy and varied diet, there is no need to use multivitamins."