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.
Don’t eat fewer than 1,000 calories a day. Your body and metabolism thrive on food. When you fast or crash diet, your metabolism will slow down in order to conserve energy. Imagine your metabolism as a blazing fire. If the fire burns consistently with the appropriate amount of high-quality wood, it will burn at a steady rate. But if it doesn’t have enough wood, the fire goes out. If it has too much wood, it can get out control — just like your waistline!