Yogurt is a kind of food that is produced by the process of bacterial fermentation. Many individuals all around the globe have certain food allergies. Yogurt is capable of triggering various allergies in an individual. The symptoms are very easy to detect. So if a child who is allergic to yogurt ingests any dairy product, a negative reaction is then triggered by the enzymes of this food. Allergen, Individual Food Yogurt blood test is prescribed by the doctor to check whether any component of yogurt like live bacteria is responsible for the negative reaction in the body or not.