Abstract: The disclosed embodiments include a calorie optimization respiratory exchange metabolic system comprising a computer-readable storage media having stored thereon computer-executable instructions; a processor for executing the computer-executable instructions, wherein the computer-executable instructions include instructions for receiving user profile data of a user, wherein the user profile data includes age, height, weight, diet, and fitness information; determining five metabolic points versus heart rate; generating an individualized metabolic profile for the user based on the five metabolic points; determining for the user an individualized nutritional guideline from the metabolic profile, wherein the individualized nutritional guideline is determined by percent fat, percent protein and percent carbohydrate to optimize fat metabolism for weight loss, maintenance, and endurance exercise enhancement; and determining an individualized exercise heart rate profile as a percentage of maximum heart rate from the