My family is not vegan. We’re not even completely vegetarian. I serve the occasional organic, grass-fed hamburger, and I let them order conventional burgers in restaurants, if they want to. But I let my kids know that we eat very little meat—living a semi-vegetarian life—for one important reason: Dioxins. Now you may not have heard much about this group of roughly 75 related chemicals—unless you were an early adopter of alternative feminine hygiene products that touted their avoidance of the stuff. But I digress. As a parent, these are a few facts you need to know.