Tissue Transglutaminase Antibodies IgA and IgM / tTG are antibodies that the body can develop against gluten (found in wheat, barley, and rye), especially in cases of frequent consumption.

1. to identify celiac disease before its symptoms appear (bloating, low B12, etc.) *
2. for the diagnosis and monitoring of treatment in celiac disease
3. to rule out celiac disease in unexplained low vitamin B12 / Ferritin values

*people with a personal or family medical history of autoimmune, celiac disease or HLA DQ2 DQ8 positive

For adults, the following are applied:

1. Expected levels in healthy people: Negative IgA < 10.0 U/ml / IgM < 20 U/ml
2. Weakly positive IgA 10.0 -15.0 / IgM 20-30 U/ml
3. Positive IgA >15.0 / IgM > 30 U/ml