For weight loss to occur, you need to be in a calorie deficit. This means that you need to consume fewer calories than you burn. The best way to manage calorie intake is through proper nutrition. By choosing nutrient-dense foods, you can fill up fewer calories while still providing your body with essential nutrients. In contrast, eating processed, calorie-dense foods makes it more difficult to stay in a calorie deficit. When you eat foods high in refined sugars or unhealthy fats, your body is more likely to store that excess energy as fat. In contrast, lean proteins, fruits, and vegetables help your body switch to fat-burning mode rather than fat-storage mode. Furthermore, healthy nutrition supports hormonal balance, including regulating insulin levels, which promotes fat loss.