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Cognitive Impairment In Elderly Is Worse If Diet Is Heavy In Carbs, Sugar

October 16, 2012: 12:00 AM EST
Mayo Clinic scientists who tracked 940 people aged 70 to 89 who provided regular information about their diets found that those who consumed a lot of carbohydrates were significantly more likely to experience mild cognitive impairment. The risk was even greater among those whose diet was heavy in sugar. Those who consumed a lot of protein and fat relative to carbohydrates were less likely to become cognitively impaired. At the start of the study participants showed no signs of cognitive impairment. But after four years 200 of those 940 were beginning to show mild cognitive impairment. When total fat and protein intake were taken into account, people with the highest carbohydrate intake were 3.6 times likelier to become cognitively impaired.
Rosebud O. Roberts et al., "Relative Intake of Macronutrients Impacts Risk of Mild Cognitive Impairment or Dementia", Journal of Alzheimer's Disease, October 16, 2012, © Journal of Alzheimer's Disease
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