Metformin-Associated Functional Vitamin B12 Deficiency Presenting as Subacute Combined Degeneration in a 57-Year-Old Man With Diabetes Mellitus
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BACKGROUND Functional vitamin B12 deficiency, also known as metformin-associated cobalamin deficiency, can occur in patients receiving metformin due to impaired gastrointestinal absorption of vitamin B12. This condition can coexist with diabetic neuropathy and... ...
