A client is distressed because a weight loss diet that focused on glycemic load has not resulted in an appreciable reduction in weight. What should the nurse respond to this client? "That is unusual since a glycemic load diet does help with weight reduction." "The best way to lose weight on this diet is to vary the glycemic loads of foods." "Unfortunately, claims that a low glycemic index diet promotes weight loss aren't proven." "Increasing the intake of high-fat foods promotes weight loss with this type of diet."