Research Roundup: January 2012

  • Antioxidants have different effects on breast cancer patients. In a five-year study of nearly 2,300 women with early-stage breast cancer, those who used either vitamin C or E had a lower risk of recurrence than those who did not use them, while women who regularly used a mix of carotenoids (vitamin A, beta-carotene and lutein) had a higher risk of dying from breast cancer or other cause. While this doesn’t prove antioxidants cause these effects, high use of carotenoids also have been linked to lung cancer in smokers.
    (Cancer, September 2011)
  • Low water intake linked to high blood sugar. A new study looked at the water intake of over 3,000 French adults who began the study, nine years ago with normal blood sugar levels. Those who drank at least two glasses of water per day were 28 percent less likely to develop high blood sugar than those who drank less. Levels of the hormone vasopressin go up with dehydration, and may cause blood sugar to rise. Though findings show a correlation between water intake and blood sugar, they are not proof.
    (Diabetes Care, Online October 12, 2011)
  • Blueberries may help fight breast cancer. That’s the news from cancer researchers at the research institute at City of Hope, Duarte, CA. They found that tumors derived from aggressive cancer cells in mice were reduced 75 percent in those fed a diet containing five percent blueberry powder, the equivalent of two cups of fresh blueberries per day. Further studies are needed to determine human dosage and the efficacy of blueberries as a strategy in breast cancer prevention.
    (The Journal of Nutrition, October 2011)
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