If you spend much time at home with a child who reacts to Red #40, you may have figured out on your own that something is amiss. That happened to me when my kids were 3 and 4. We had just moved across the country, and they were drinking a lot of Gatorade and snacking on junk, probably skittles. They were out of control. Their behavior is irrelevant, all you need to know is that when we went back to real foods, I got my sweet kids back. It was like night and day. It is criminal that Red #40 hasn't been banned like in other countries, and well, all the other artificial colors, too! Look for it in ingredients and AVOID! ALDI stores have committed to avoiding artificial colors. It's ridiculous how many foods (and meds!) have artificial colors in them. I buy a specific pickle, "Simply Pickles" from Mt. Olive because it doesn't contain Yellow #5. Check those pickle labels!
For more info, and a great website, visit Amen Clinics.