Food allergies are an ever increasing problem in our world. The problem can be life-threatening and certainly life-changing for as many as 11% of our population. A world leader on the topic of food allergy, Kari Nadeau, MD, PhD, explains to us what food allergies are all about in terms of their causation, their increasing prevalence, how to handle them on a daily basis, and what the future looks like for developing therapies. Dr. Nadeau is the author of the terrific book The End of Food Allergy.