The LEAP program is where you take away almost everything the first week and gradually add the things your MRT shows intolerance to for 6 Phases.. I do have some true allergies and alot of food intolerances...I did it in 2022..needing to go to allergist but have to be off PPIs for 7 days to do skin tests.. I had some done with blood work (IgE I think it's called) I know if it's an allergy.. if my throat starts to swell shut...then uh oh...time to pray fervently!!