A lot of people who believe they have food allergies don’t.  What’s worse, a lot of people who were told by their doctor they have food allergies don’t. An article in the current issue of the Journal of the American Medical Association tried to review the existing literature on food allergies to standardize how food allergies are diagnosed.  What the study found was an inconsistent jumble of unreliable test results and methods. First, to clear up some of the confusion, we have to understand th...