What about food allergies? Have you all found that your SPD kid has a lot of food allergies? My DD is allergic to corn, milk, all nuts, and she can't tolerate whole wheat at all. I suspect she is also allergic to citrus fruits and tomatoes. Oh and cats, just like me. My DS is allergic to milk and shellfish. Probably some other things as well, but definitely not peanuts--the boy lives on PBJ sandwiches! made the decision whether or not to take school lunch VERY easy for us.
We're also avoiding food coloring because I've heard a lot of moms say that is a trigger for poor behavior. Anyone have any experience?