Let’s face it: Eating well-rounded meals is tough enough; trying to make sure your little picky eater is doing the same is even harder. We’d all love to live on a steady diet of mac and cheese and chicken nuggets, but—at the risk of being TMI here—you then deal with the whole issue of your kid not being, uh, regular. Thankfully, there are plenty of high-fiber foods for kids that will keep their digestive systems running smoothly. It’s all a matter of knowing how much fiber to aim for—and have an arsenal of snacks at the ready to serve your kiddos throughout the day.