Welcome to the forum, @LizzieF! Yes, I also question whether or not your exposure to gluten before either the endoscopy/biopsy or the antibody testing was long enough or intense enough to render valid test results. Guidelines for the "gluten challenge" have recently been revised to recommend more intense exposure: at least 10g of gluten (about the amount in 4-6 slices of wheat bread) daily for at least two weeks leading up to the day of the blood draw or the procedure. But frankly, I would certainly give it twice that long to be sure. It is also very possible you are dealing with NCGS (Non Celiac Gluten Sensitivity) instead of celiac disease. They share many of the same symptoms but...

Hi everyone - I have been gluten free for 2+ years after doing some genetic testing that showed inability to process gluten and carrying a gene for celiac (I’ve had GI related issues for 20+ years that were diagnosed as IBS/lactose intolerance). After persistent low iron, new GI suggested we look at celiac. Endoscopy results noted the below. I have to add that I added gluten for about 12 days prior to my test (and was miserable in the process). “The differential diagnosis includes celiac disease, but the degree of intraepithelial lymphocytes does not reach the threshold for Marsh 1 lesion.” Chrons/Colitis negative. GI suggested I continue eating gluten (after a 3 day pause awaiting...