What is metabolism?
Metabolism is the process by which your body converts calories from food into energy. People often believe that a slim person’s metabolism is high and an overweight person’s metabolism is low, but this isn’t usually the case. Metabolism alone does not determine your weight. Rather, weight is dependent on the balance of calories consumed versus the calories burned. Eat more calories than you need — you gain weight. Eat fewer calories than you need — you lose weight. Metabolism is merely the body’s engine that burns calories and regulates your caloric needs.