Study found multivitamins, calcium tablets had protective effect
SUNDAY, April 18 (HealthDay News) -- Women who take multivitamin tablets along with calcium supplements seem to have a reduced risk of developing breast cancer, new research suggests.
The authors of the study, which is to be presented Sunday at the American Association for Cancer Research annual conference in Washington, D.C., did not separate out which specific vitamins might be beneficial but suggested that the interactions of different vitamins together might account for the beneficial effect.
"The effect was seen with multivitamins, not with single vitamins," said study co-author Dr. Jaime Matta, a professor of pharmacology, physiology and toxicology at Ponce School of Medicine in Ponce, Puerto Rico. "It's possible that the vitamins work better together than individually."
"We found that taking multivitamins and calcium supplements were strongly protective against breast cancer," said Dr. Manuel Bayona, a professor in the public health program at the Ponce School of Medicine. "Which vitamins exactly? We don't know because they were multivitamins."
The findings, however, do seem to contradict previous reports that the supplement forms of various single vitamins including E and C don't prevent breast cancer in women. Other studies have suggested a protective effect for individual vitamins.
The new study won't do much to settle that confusion, one expert said. "The results are interesting but it's a small study," said Joanne Dorgan, an epidemiologist with Fox Chase Cancer Center in Philadelphia. "At this point in time, most of the big studies don't support an association."
For this study, the authors compared vitamin and calcium intakes of 268 women with breast cancer and 457 women without breast cancer, all in Puerto Rico.
They also measured the ability of the women's DNA to repair itself, a function tha
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