Can HLA-DQ2 help with blood sugar?

The provided context does not contain any direct information linking HLA-DQ2 to blood sugar. HLA-DQ2 is primarily known as a risk factor for celiac disease, not for direct blood sugar regulation. An indirect link via celiac-related malabsorption or associated autoimmune conditions (e.g., type 1 diabetes) is possible but not supported by the given material. Without specific studies, the evidence remains unclear. Blood sugar management should rely on established markers such as HbA1c, fasting glucose, and lifestyle factors, not on HLA typing.