Most published studies of low glycemic diets with calorie counting show that consumption of low glycemic index foods delays the return of hunger, decreased subsequent food and calorie intake. Compared to high glycemic index diets, low glycemic index diets increase satiety or the feeling of being full.
The results of several small short-term trials (up to 4 months) suggest that low glycemic load diets result in significantly more weight loss or fat loss than high-glycemic load diets. While few long-term randomized controlled trials of low glycemic load diets have been published, the results of short-term studies on appetite regulation and weight loss suggest that low glycemic load diets may be useful in promoting long-term weight loss and decreasing the prevalence of obesity.
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