We offer controlled food challenges with many types of foods for appropriately selected patients here in our offices. We perform “open” food challenges, wherein the patient knows he or she will be receiving the food that could be causing the allergic reaction.
We give gradually increasing amounts of food at prescribed time intervals while closely monitoring for any symptoms. A typical food challenge is usually performed in the morning and may take up to four or five hours. Blinded food challenges are also possible but considerable preparation and scheduling is required.