Carbs will keep your memory sharp.
After overweight women followed a “low-carbohydrate” diet for a week (they were told to completely eliminate carbohydrates from their diets) they did worse on tests of working memory (i.e., why did I walk into this room?) and visuospatial memory (remembering locations on a map) than their counterparts who followed a “low-calorie” diet, based on American Dietetic Association guidelines, in a study from Tufts University.