High glycemic index and glycemic load diets as risk factors for insomnia: analyses from the Women’s Health Initiative

Previous studies have shown mixed results on the association between carbohydrate intake and insomnia. However, any influence that refined carbohydrates have on risk of insomnia is likely commensurate with their relative contribution to the overall diet, so studies are needed that measure overall dietary glycemic index (GI), glycemic load, and intakes of specific types of carbohydrates.We hypothesized that higher GI and glycemic load would be...