Quick Studies: a snapshot of the latest research on diet, exercise, and more

fork over a plate of salad

Animals live longer—and stay healthier—when they’re put on a lower-calorie diet. Is that also true for humans? To find out, the CALERIE study randomly assigned 218 people aged 21 to 50 to eat their regular diets or to cut calories by 25 percent. All were in the upper half of the “normal” or the lower half of the “overweight” range.