If you have kids who are 10 to 15 pounds overweight, the current thinking is that they should not be put on restrictive diets. Instead, it's better to help them make basic improvements in their diets, ramp up their activity, and give up some TV and computer time. Perk up your kids' diet by adding more fruits, vegetables, and whole grains while cutting back on the junk foods. That way, you'll automatically slow the rate of their weight gain while they continue to grow in height. Children go through dynamic phases of growth, and a low-calorie diet is not what they need. They need nutrients and activity.