Food allergies have generated a great deal of anxiety in recent years, with some schools going so far as to ban popular staples — especially peanut butter — after appeals from worried parents. Some airlines have quit serving peanut snacks, and more and more restaurants are offering dishes for diners concerned about gluten or dairy allergies. There is no question that some foods, especially peanuts and shellfish, can provoke severe reactions in a small fraction of the population. But a new analysis of the best available evidence finds that many children and adults who think they have food allergies are mistaken. . read more.
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