I found this website that claims they can test your dna through a hair sample to see what intolerance you have to 600 food and non food items. I can't find any information online on whether this is even possible. This is the address http://www.testyourintoleranceusa.com/ Any information would be a huge help. I'm not covered under any insurance and don't have the money to see a doctor but i'm trying to reduce my add symptoms and have noticed a big improvement avoiding gluten, dairy, and artificial colors. If they really can do tests like this one it would really help to know if there is anything else i should be avoiding.View Thread