To determine daily caloric needs, consider factors such as age, gender, weight, height, and activity level. The Mifflin-St Jeor equation is commonly used for calculating basal metabolic rate (BMR) and, once adjusted for activity level, helps establish total daily energy expenditure (TDEE). Tracking food intake and energy levels can help fine-tune caloric needs over time. Furthermore, considering specific fitness or health goals can guide necessary adjustments for weight loss, maintenance, or gain.