A low-calorie diet is a dietary plan that restricts daily calorie intake to promote weight loss or improve health. Typically, this diet involves consuming fewer calories than the body burns, which can lead to a calorie deficit. Foods that are low in calories, such as fruits, vegetables, and lean proteins, are often emphasized to ensure nutritional needs are met while reducing overall calorie consumption. People following a low-calorie diet may aim for a daily intake of around 1,200 to 1,500 calories, depending on individual factors like age, gender, and activity level. It's important to balance calorie reduction with essential nutrients to maintain overall health and energy levels.