Studies show the number of Americans coping with potentially life-threatening food allergies has increased. Restaurants and foodservice operations can use programs such as the National Restaurant Association's ServSafe and designate allergy experts in the front and back of the house to make guests feel more secure about ordering safe meals. "There's this fear of needing to do a herculean effort to accommodate a person with a food allergy," ServSafe Director William Weichelt said. "A lot of times, it doesn't require a separate kitchen. It just requires a base of knowledge."