Flapj, You would be interested in a book by Doris Rapp. I think it's called "Is This Your Child?". This is one woman a Doctor I believe who took a good look at all the poison out in this here world that is compromising our kids.
My daughter had food allergies. From get go as an infant I spent many, many days, and nights pacing the floors with a screaming infant. They changed her formula four times. She had constant ear infections. Tubes in her ears four times.
As she got older she would have tantrums or talk in rhyme or whine, and misbehave. Thankfully I wrote these down, and took note it was when she was eating certain things or in a certain place. Otherwise I'd have been punsihing her for something that was beyond her control.
Sure enough the rugs in her little play school had a certain glue. She was only there twice a week for two hours, and I was a helper mom. I had awful headaches in that place. She it came to be was allergic to orange dye, corn syrup, and certain perfumes and shampoo. Once I read that book, and took action I had a sweet, smiling, calm, and very passive child. Once she begged me for a vitamin a few hours after I gave her one. I mean like my junkie whine like "Pllllleeeeeaaaseeee. I NEED it". It wasn't in a shape of Hello Kitty or anything. Just a vitamin. Here it was chock full of corn syrup.
So there it is. We crave what is bad for us. Not too far off from us. Thanks for that link I'm going to check it out.