Looking For a Reaction | KeHE.com Gone are the days of swapping PB&J sandwiches for milk and cookies in the cafeteria. Looking For a Reaction | KeHE.com Americans are increasingly suffering from food allergies, making allergen-friendly food options all the more critical for lunch boxes. Looking For a Reaction | KeHE.com While peanuts and dairy are major players, more ingredients are getting the red flag. Individuals with sensitivities are now looking to steer clear of artificial flavors, preservatives and colors. But as the allergens increase, so does the allergen-friendly consumer base—and products designed to cater to their dietary needs.