This is a perfect example of our culture of (ill)health in action. The source of our confusion is often conflicting information, coming from "authorities" whose agenda has more to do with their bottom line than yours.
[New Math: Eat more of their products and then, somehow, you'll eat less?]
Eating main meals plus snacks may help to control hunger so that we don't overeat at meal times, they report.
[Ad Attack Aimed At Children]
Unbelieveably, the nutrition expert they interviewed for this piece said that it was particularly important for toddlers to snack throughout the day because it was difficult for them to get enough nutrients at meal times.
Maybe it's only difficult for children to get enough nutrients if they don't eat a normal meal, with real foods.