My parents are a nutritionist's dream come true. They regularly eat quinoa, kale, and flaxseed; grow their own vegetables; and, as a general rule, feed us extremely well whenever we visit. Of course, they have a real soft spot for their grandkids, which is often communicated in the form of treats. And even though they get the best of the best when it comes to kid snacks — organic fruit snacks, hormone-free chocolate milk, whole-grain bunnies — our biannual visits have often felt like treat-loading. At least, that's how I used to feel.