"Carbohydrate Intake Changes Linked to Long-Term Weight Changes: Prospective Study"
A prospective cohort study examined the association between changes in carbohydrate intake and long-term weight changes. The study included over 136,000 men and women and found that increases in glycemic index and glycemic load were positively associated with weight gain. However, increased intake of carbohydrates from whole grains, fruit, and non-starchy vegetables was inversely associated with weight gain. Replacing refined grains, starchy vegetables, and sugar-sweetened beverages with whole grains, fruit, and non-starchy vegetables was associated with less weight gain. These associations were stronger among participants with overweight or obesity. The study highlights the importance of carbohydrate quality and source for long-term weight management, especially for individuals with excessive body weight.