A caloric deficit occurs when the number of calories you consume is less than the number of calories your body uses for energy. This can happen through a combination of eating fewer calories and increasing physical activity. When in a caloric deficit, the body starts to use stored fat for energy, which can lead to weight loss over time. To achieve a caloric deficit, individuals often track their food intake and exercise routines. It's important to maintain a balanced diet to ensure that the body receives essential nutrients while losing weight. A sustainable caloric deficit can promote healthy weight management and overall well-being.