You must NOT change your diet before the blood test!!!!

If you stop eating gluten or decrease your usual gluten, you will have a negative test no matter if you have celiac or not.

The blood test ONLY picks up antibodies to gluten. You must be eating gluten for several weeks before and during the test in order for the antibodies to be produced. Some doctors recommend 6 slices of bread a day for 6 weeks before the test.

If you change your diet before the blood antibody test, then your only option is the DNA test, which is not covered by insurance and is a couple thousand dollars.

Please talk to your endocrinologist before you go eliminating any foods.

Plus, if you truly do a gluten-elimination diet, you must have guidance from a nutritionist for it to be effective. Gluten shows up in some bizarre places.

Please, do all the other things for a healthier pattern of eating that folks have suggested. All those great cookbooks, all those lovely fresh fruits and vegetables and whole grains.

But don't mess with restrictive diets of any sort without a doctor's or nutritionist's guidance.