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Study Finds High Magnesium Intake Related to Lower Risk for Type 2 Diabetes Among African-American WomenWhy did the researchers do this particular study?Previous studies have shown that maintaining a diet high in calcium and magnesium is linked with a lower risk of type 2 diabetes, but all of these studies have taken place among white populations. The researchers wanted to see if there was a link between magnesium and calcium and type 2 diabetes risk among African-American women. Calcium is commonly found in dairy products. Magnesium is found in many foods, including fish, milk, green leafy vegetables, nuts, whole-grain breads, and yogurt. Who was studied?Approximately 41,000 women who took part in the Black Women’s Health Study and did not have diabetes. How was the study done?Every year for 8 years, the women were sent a questionnaire that contained 68 questions about what they ate the previous year. The women also completed questionnaires about their overall health. What did the researchers find?The researchers found that women who ate foods high in magnesium, particularly whole-grain breads, were less likely to get type 2 diabetes. Substituting low-fat dairy products for high-fat dairy products was also linked to a lower risk for type 2 diabetes. What are the limitations to the study?The study relied on responses to questionnaires, which can occasionally result in inaccurate information from a responder. What are the implications of the study?Maintaining a diet high in magnesium-rich foods, particularly whole-grain breads, lowers the risk of getting type 2 diabetes among African-American women. FOR MORE INFORMATIONMagnesium, Office of Dietary Supplements, NIH Calcium, Office of Dietary Supplements, NIH |
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