As an allergy practice in the valley, we are always asked about the reliability and appropriateness of the ALCAT and IgG food allergy tests. Infact, we see at least, one patient a week bringing this detailed food testing to our office and wondering if they should be practicing this diet of “mild”, “moderate”, “severe” or better yet, “red”, “yellow”, “green” diets. Most recently, I saw a frustrated father who has put his chil...