Food-based allergies have symptoms ranging from barely noticeable to imminent threat of death. Research suggests that approximately 15 million Americans have food allergies. A 2015 study by the Centers for Disease Control and Prevention found that food allergies in children increased by about 50% between 1997 and 2011. The most common allergen for children is cow’s milk, while the most common allergen for adults is shell fish. Peanuts aren’t the most common allergen for any segment of the population, but they are frequently the most violent. Some are so allergic to peanuts they can’t be in the same room with a peanut butter cookie. Food allergies are increasing in all segments of the population. It’s not clear whether allergies or reliable diagnosis is on the rise, but one thing is certain. The health threat can’t be ignored. Food service is feeling the impact strongly.