In order for a child to lose weight, a healthy diet must be combined with regular physical exercise. Once a child reaches a lower weight, exercise also helps maintain that weight. Thirty minutes of physical exercise each day will not only burn more calories but will lower the blood pressure and pulse. These are direct measures of cardiovascular fitness. Another benefit of exercise is a lowering of blood cholesterol levels. Those with diabetes will find their blood sugar levels easier to control when exercising.

Physical activity may include walking, jogging, swimming, cycling, aerobics, or a step aerobics program. Almost any activity that involves mild to moderate exertion is good. Those with physical disabilities or another health conditions may need to learn less conventional exercises.