i know these issues are tough. i was lucky that i had hardwood under my carpet. probably the best you can do is limit exposure with longsleeved tops and long pants... socks ect.
re Max's food, I might have to have my wife June discuss that in more detail as I'm only around for the evening feeding. I know he gets alot of pureed squash and green leafy veggies... some millet, the occaisonal peach. he gets a little chicken now too I think. I will ask my wife to give you more detail.