A bowl of plain steamed lentils isn't likely to be your child's favorite food, but that doesn't mean you should give up trying to get him to eat them. Lentils are a good source of fiber, which boosts your child's digestive health. They also contain a good dose of iron, zinc and potassium. Get creative and little bit sneaky about including lentils in your child's meals. Chances are, he won't even notice.