Hypocaloric diets, which involve consuming fewer calories than the body expends, are a cornerstone of obesity treatment. By creating a calorie deficit, these diets promote weight loss. However, it is important to focus not only on calorie reduction but also on the nutritional quality of the food consumed. A well-balanced hypocaloric diet ensures the body receives essential vitamins, minerals, and macronutrients to maintain energy levels and support muscle mass preservation. Long-term success in weight loss is achieved through sustainable changes in eating habits, exercise, and lifestyle. Hypocaloric diets should be combined with physical activity to further boost fat loss while minimizing the loss of lean body mass. Healthcare professionals often guide individuals in creating a diet plan tailored to their specific needs, ensuring a healthy and gradual weight loss process.