The Anti-Gliadin IgA (AGA IgA) Test is a specialized blood test offered by Augmentum Diagnostics to detect Immunoglobulin A (IgA) antibodies that react against gliadin, a protein component of gluten found in wheat, barley, and rye. This test is primarily used as a screening tool in the initial diagnosis of Celiac Disease (CD), a serious autoimmune disorder, and other gluten-sensitive conditions.