Has anyone ever heard of someone being allowed to bring liquids more than 3 oz past security due to food allergies and a resulting very limited diet? I have to avoid dairy, soy, gluten, eggs, tree nuts, peanuts, fish, shellfish, strawberries, red meat, pork and mushrooms, so needless to say, finding food to eat is a challenge and there are not many places I can eat out. I also have blood sugar problems, so when I need to eat, I need to eat right away so my sugar doesn't drop so low I pass out. If I have a letter from my doctor, will I be allowed to bring a small soft sided cooler past airport security? I thought I could pack some Naked brand smoothies, turkey and my allergy bread to get me through my mealtime, as well as snack and any emergency crash that might occur.