Food allergies are caused by the body’s immune response to proteins, or allergens, within food that should be harmless. Although the allergen will not hurt us, the body releases histamine which can leave us feeling very unwell. From hives and nausea to wheezing and low blood pressure, having an allergy can leave you feel nervous about eating out or trying new foods. A quick visit to our local pharmacy in Leighton Buzzard for food allergy testing could help alleviate your fears.