In weight management, the term "caloric deficit" refers to the condition where caloric intake is less than caloric expenditure. This deficit forces the body to utilize stored fat for energy, leading to weight loss over time. Achieving a caloric deficit can be done through dietary changes, such as reducing portion sizes or choosing lower-calorie foods, combined with increased physical activity. It's crucial to maintain a healthy balance to ensure the body receives necessary nutrients and to avoid unsustainable dieting, which can lead to rapid weight regain.