The Explaining series looks at a range of conditions, illnesses and disabilities that affect children and adults all over the world. The books explain why they occur, how they are diagnosed, how they affect people and how they can be treated. Explaining: Food Allergy will help you understand what a food allergy is and how it affects people. Case studies illustrate what is like to live with a food allergy and how people with the condition manage it to live full and happy lives.