Q: My children are one, three and five-years-old. Should I worry about fat in their diets at these ages? Should I give them low-fat or whole milk?

QMy seven-year-old has had a sudden growth spurt -- in all directions! He's grown two inches and gained six pounds in just three months. And he has suddenly developed a pot belly. I offer him balanced meals and don't allow many unhealthy snacks, but lately he has a strong preference for carbohydrates and eats hardly any lean protein -- chicken, fish, etc. He does drink milk and he eats eggs, cheese and peanut butter. Is that enough protein? He eats some fruits but hardly any vegetables.