Some of you may know what gluten is, but for those who do not: Gluten is a substance found in wheat, barley, rye, and (arguably) oats. It’s in bagels, muffins, toast, pizza, Pringles, Doritos, cake, and even in carbonated drinks and certain blends of tea. That means—for us gluten-free people—no standard pizza, bagels, or bread, […]