[Jenna P]

Try http://www.dynamicnutritionanalysis.com/pet-report.html its a hair sample test, you simply mail in 4 pieces of hair, they test the hair against 600+ food and non food items, plus can test for vitamin deficiencies. You can also send in 5 different types of kibble, they will see which one is best suited to your dog but giving you an intolerance percentage.
This test helped me an my allergy ridden dogs!