<<Disclaimer: Verify this information before applying it to your situation.>> Previous discussion of the three antibody blood tests has dealt with using them to diagnose celiac: false positives and false negatives limit their use for ultimate diagnosis but does leave them as a screening tool for intestinal biopsy. Do these limitations carry over in using them to verify that gluten is being adequately excluded from the diet? Can one or more of these antibodies be elevated in the absence of gluten intake for a biopsy diagnosed person? Conversely, can gluten intake NOT elevate one or more of these? Is the anti-endomysial test alone sufficient for this use? Kemp Randolph [log in to unmask]