The amount of food energy you need depends upon the amount of energy your body is using. Everyone knows you need energy for running, swimming, and playing basketball. But did you know that your body needs energy even when you aren’t moving? Most of the food energy the body needs is used for basic functions, such as breathing, circulating blood, and growing. The amount of energy needed for these basic functions is called the basic metabolic rate. Basic metabolic rate is the rate at which energy is used to keep you alive when you are in a rested, fasting state, such as just after you wake up in the morning. The amount of energy that is used for BMR is different for each person. Also, the Calorie requirements of boys and girls differ. On average, boys require more Calories per day than girls do. For example, active 15-year-old boys need about 3,000 Calories per day, and active 15-year-old girls need about 2,300 Calories per day. A person’s basal metabolic rate and Calorie requirements are?
different for each individual