Adventures in technophobia: The at-home device taking the guesswork out of gut health

Food allergy testing has always seemed like something of a scientific outlier. There was a time when everyone seemed to be offering it, and as a result everyone seemed to be diagnosed with something. You were gluten/lactose/wheat/yeast or whatever-intolerant and to be honest, it was hard to keep up. It has now become part of the mainstream, with dietary requirements being way more involved and common (I once had a request for everything-free-from salad from ...