The main objective of this article is to know about food allergies. Food allergies is very harmful for every human life. It is injurious to health. Food allergies or food intolerances affect nearly everyone at some point. People frequently have an unpleasant response to something they ate and wonder if they have a food allergy. One out of three people either say that they have a food allergy or that they change the family diet because a family member is suspected of having a food allergy.