How to Cut Calorie Density (Plus Three Recipes)

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.)

Do Intermittent Fasting Benefits Include Living Longer?

“We’ve known for a long time that if you reduce the calorie intake of rats or mice, they live much longer,” says Mark Mattson, chief of the laboratory of neurosciences at the National Institute on Aging (NIA) in Baltimore. Do these intermittent fasting benefits carry over to humans?

What happens in species closer to humans is more complicated. Rhesus monkeys fed 30 percent fewer calories lived longer in a study at the University of Wisconsin, but not in a study at the NIA.