Reducing breast cancer risk — naturally

Breast Cancer awareness ribbonVitamins and calcium supplements appear to reduce the risk of breast cancer, according to findings presented at the American Association for Cancer Research 101st Annual Meeting 2010.

“It is not an immediate effect. You don’t take a vitamin today and your breast cancer risk is reduced tomorrow,” said Jaime Matta, PhD, professor in the Ponce School of Medicine in Puerto Rico. “However, we did see a long-term effect in terms of breast cancer reduction.”

Matta said the findings suggest that the calcium supplements are acting to enhance DNA repair capacity, a complex biological process involving more than 200 proteins that, if disrupted, can lead to cancer.

“This process involves at least five separate pathways and is critical for maintaining genomic stability,” said Matta. “When the DNA is not repaired, it leads to mutation that leads to cancer.”

The study included 268 women with breast cancer and 457 healthy controls. Women were more likely to have breast cancer if they were older, had a family history of breast cancer, had no history of breastfeeding, and had lower DNA repair capacity.

The risk of breast cancer appeared to be reduced by about 30% in the case of vitamin supplements, 40% with calcium supplements. After controlling for the level of DNA repair capacity, calcium supplements were no longer as protective, but the link between vitamin supplements and breast cancer reduction remained.

“We’re not talking about mega doses of these vitamins and calcium supplements, so this is definitely one way to reduce risk,” said Matta.

4 thoughts on “Reducing breast cancer risk — naturally”

  1. Vitamins are quite numerous. Why did the article not tell us what vitamins are recommended other than calcium? Does this not seem to be an important point?

  2. You are absolutely correct. The press release from the American Association for Cancer Research did not mention the vitamins, but the actual research involved a multi-vitamin supplement that contained vitamins A, E, and C, or some combination of those. The interesting thing was that the multi-vitamin supplement alone didn’t have any significant effect; only when used in combination with the calcium.

    Dr. Rondberb

  3. Thanks for the great article, and for the further explanation in your response to Jim. It’s so often about synergy, isn’t it? Keep up the good work.

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