Eating foods with fewer calories per bite can help people eat less and stay trim. But what’s the best way to cut calorie density?
One day a week for four weeks, scientists provided all the food (breakfast, lunch, dinner, and evening snack) eaten by 59 adults aged 20 to 45. On those days, the researchers lowered the calorie density of the entrées by 20 percent in one of three ways: adding less fat (butter or oil), increasing fruits and vegetables, or adding water. (For example, the researchers added water to a Tex-Mex pasta casserole and a chicken rice casserole by turning them into soups.)