There are many ways in which drastic dieting can affect your metabolism, here are three:
- Eating increases metabolism due to the energy required for digestion and absorption of the food. Skipping meals causes a decrease in your metabolic rate until you eat something. Skipping breakfast and lunch and eating a large dinner means missing out on two important chances to increase your metabolism and boost the number of calories you burn.
- Significantly reducing calories lowers the body's metabolism. Your body treats any reduction in food intake as an impending starvation situation and prepares itself by slowing your metabolism to conserve calories. The more drastically you cut calories, the more your metabolic rate drops.
- Losing weight through dieting alone without adding exercise depletes your muscle tissue stores. Muscle requires many calories each day to maintain itself. The faster you lose weight through dieting alone, the more muscle tissue you lose. Exercise prevents muscle tissue loss and adds muscle.
The best way to keep your metabolism elevated, and to burn more calories, even at rest, is to:
o Avoid rapid weight loss diets
o Eat frequent small meals or snacks throughout the day when you are hungry
o Add more muscle to your body through strength and interval training
o Burn more calories through aerobic activity like interval training