I found a website (thankyou to ChloeKP for product reference) that lists a range of tests that reminded me of some of the theories that others have made on here. There is a parasite test, a Vitamin D test, and a few food intolerance tests. Has anyone else had experiences with any of these tests? I'm considering the food detective test but I'm wondering if the 200+ test is more comprehensive? Should I try the food detectives test and work from there?