A low-calorie diet is a popular way to lose weight, but there are other terms you can use to describe this type of eating plan. Some synonyms for low-calorie diet include calorie-restricted diet, reduced-calorie diet, low energy-density diet, and weight management diet. These terms all refer to a diet that limits your calorie intake to help you lose weight. They may also involve choosing foods that are low in fat and high in fiber and protein to keep you feeling full and satisfied. If you are trying to lose weight or improve your health, a low-calorie diet may be a good option for you.