The main concern of children’s nutrition was making sure that kids had enough food to eat, that they were growing properly. We must understand that kids don’t need as much food as you think they do.
Some kids who eat a lot due to parental pressure and not because of their own hunger pangs are at risk for future obesity. More eat do not always mean more health. But good nutrition is always the healthiest.

Your child needs nutritional diversity in order to get all the good nutrients that nature offers. The problem is that our ideas about nutrition are often piecemeal, a guideline here and a guideline there. We get the message that certain foods are “good” while others are “bad.” But we miss the more important idea of how different kinds of foods work together to make a healthy body.

Who Needs to Diet?
Though some people may feel they weigh too much or too little, there is no perfect body shape. Some people have larger frames (bigger bones) and will always look bigger and heavier than people with smaller frames.
Talk to your doctor if you have questions about your kid’s weight. Your doctor can examine you and check their BMI. For some kids, the doctor may recommend losing some weight, but this should be done with the doctor's help.

Parents have an enormous influence over their children’s eating habits, perhaps more than we realize. What children eat now affects their health later and children’s eating habits carry into adulthood.

Offer a sampling of lots of different kinds of foods. Give them more fruits. Fruit doesn’t just mean juice—because whole fruits are best. Whole-grain foods are also good for kids and not only for adult. Limited their consumption of fast food, soft drink and sweetened canned fruit.