11 Foods That Soothe a Sore Throat Many fruits, vegetables, and herbs are capable of saving the day with their antioxidant-rich powers and can sometimes help you avoid that trip to the doctor. iStock/Thinkstock
RAST stands for radioallergosorbent test. This is a blood test used to diagnose allergies. Your blood is drawn and a lab will analyze your blood sample for the level of antibodies that cause allergies.
MRT is not the only food sensitivity test on the market, however it is the most effective. Food allergy tests that are most commonly used such as skin prick or scratch testing only test for the type of immune response that occurs in food allergies (IgE) and will not pick up food sensitivities.