Metformin Use and Vitamin B12 Deficiency
Metformin Use and Vitamin B12 Deficiency
The primary objective is to determine the incidence of Vitamin B12 deficiency in patients on metformin therapy for diabetes.
Inclusion Criteria:Age 20-80; diagnosed with type 2 diabetes for at least 30 days
Exclusion Criteria:known vitamin B12 or folate deficiency; pernicious anemia; on vitamin B12 therapy; hematological malignancy; methotrexate use; alcohol intake greater than two drinks per day; vegetarian diet; previous gastric surgery; inflammatory bowel disease