How are calories/meal sizes determined?

Members have access to the F45 Training App Calorie Guide. Calories are suggested based on your baseline Basal Metabolic Rate (BMR), Weekly Activity Level, and selected goal: weight loss, health maintenance, or build muscle, using the Mifflin St. Jeor Equation. Once this is determined, the F45 Training app automatically chooses meal sizes that add up to the total suggested calories.