Peanut allergy is a type of food allergy distinct from nut allergies. It is a type 1 hypersensitivity reaction to dietary substances from peanuts causing an overreaction of the immune system which in a small percentage of people may lead to severe physical symptoms. It is estimated to affect 0.4-0.6% of the population. In England, an estimated 4,000 people are newly diagnosed with peanut allergy per year (11 per day); 25,700 having been diagnosed with peanut allergy by a clinician at some point in their lives. The most severe allergies in general can result in anaphylaxis, an emergency situation requiring immediate attention and treatment with epinephrine...