Here are 5 key rules to live by:

1. Parents control the supply lines. You decide which foods to buy and when to serve them. Though kids will pester their parents for less nutritious foods, adults should be in charge when deciding which foods are regularly stocked in the house. Kids won't go hungry. They'll eat what's available in the cupboard and fridge at home. If their favorite snack isn't all that nutritious, you can still buy it once in a while so they don't feel deprived.
2. From the foods you offer, kids get to choose what they will eat or whether to eat at all. Kids need to have some say in the matter. Schedule regular meal and snack times. From the selections you offer, let them choose what to eat and how much of it they want. This may seem like a little too much freedom. But if you follow step 1, your kids will be choosing only from the foods you buy and serve.
3. Quit the "clean-plate club." Let kids stop eating when they feel they've had enough. Lots of parents grew up under the clean-plate rule, but that approach doesn't help kids listen to their own bodies when they feel full. When kids notice and respond to feelings of fullness, they're less likely to overeat.