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April 12, 2010: 12:15 AM EST
A four-year U.S. study of adults over 65 years old has found that a diet rich in dairy products, red meat, organ meat and butter is strongly correlated with the onset of Alzheimer’s disease. Scientists studied 2,148 older adults without dementia, and checked them for signs of dementia every year and a half. The diets of the 1,895 people who did not develop Alzheimer's included salad dressing, nuts, fish, tomatoes, poultry, and fruits, as well as cruciferous, dark and green leafy vegetables. They ate very little high-fat dairy products, red meat, organ meat or butter. The healthier diet, which featured higher intakes of nutrients such as omega-3 and omega-6 polyunsaturated fatty acids, vitamin E, and folate, resembles the Mediterranean diet characterized by low intakes of saturated fatty acids and vitamin B12.
Yian Gu, PhD; Jeri W. Nieves, PhD; Yaakov Stern, PhD; Jose A. Luchsinger, MD, MPH; Nikolaos Scarmeas, MD, MS, "Food Combination and Alzheimer Disease Risk A Protective Diet ", Archives of Neurology, April 12, 2010, © American Medical Association
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