Anytime we talk about "banning" something I prefer a very conservative approach (conservative as in let's not ban things unless we are <i>really</i> sure). We are constantly learning new things that upend what we used to accept as science regarding nutrition and how the human body works. I think we do ourselves a disservice sometimes by banning things that we don't understand (and sometimes we <i>think</i> we understand but really don't).<p>That said, there is something wrong with our food. We have had an explosion in auto-immune disorders over the last few decades that is accelerating. Allergies to common foods are increasing rapidly as well. An allergist that I see has recently starting adding citrus tests to her test panel, because citrus is suddenly (and for unknown reasons) becoming a big problem. I don't know what's wrong, but I do hope we figure it out.