Potatoes, glycemic index, and weight loss in free-living individuals: practical implications.

Background: The role of glycemic index (GI) and foods with negative attributes related to GI as part of a weight loss regimen has not been thoroughly assessed in free-living individuals. This study examined the effects of a dietary prescription for energy intake modification, GI, and potato consumption on weight loss, dietary prescription adherence, body composition, and glucose control in a free-living, self-selecting overweight population.

Methods: Ninety overweight (body mass index [BMI] 29.