Danna Korn is the author of “Living Gluten- Free for Dummies,” “Gluten-Free Cooking for Dummies,” “Wheat-Free, Worry-Free: The Art of Happy, Healthy, Gluten-Free Living,” and “Kids with Celiac Disease: A Family Guide to Raising Happy, Healthy Gluten-Free Children.” She is respected as one of the leading authorities on the gluten-free diet and the medical conditions that benefit from it.