PONCE, Puerto Rico, April 20 (UPI) — Supplements of vitamin D and calcium may help reduce breast cancer risk, U.S. researchers said.
Jaime Matta, a professor in the Ponce School of Medicine in Puerto Rico, said supplements of vitamin D may help reduce breast cancer risk by 30 percent and supplements of calcium may reduce the breast cancer risk by 40 percent.
“It is not an immediate effect,” Matta said in a statement. “However, we did see a long-term effect in terms of breast cancer reduction.”
Matta said the findings suggest calcium supplements act to enhance DNA repair — a process involving more than 200 proteins. If DNA is not repaired, it can lead to mutation and cancer, the study said.
“We’re not talking about mega doses of these vitamins and calcium supplements, so this is definitely one way to reduce risk,” Matta said.
Matta and colleagues compared 268 women with breast cancer and 457 healthy controls.
The study findings were presented at the annual meeting of the American Association for Cancer Research in Washington.
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