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A vitamin B12 deficiency can develop slowly and symptoms may include: Persistent tiredness or low energy Shortness of breath Pale skin Pins and needles Memory or concentration difficulties If left untreated, deficiency can lead to more serious neurological complications
it can also be prescribed to individuals living with obesity and type 2 diabetes
Lee IC, Lin W-M, Shu J-C, Tsai S-W, Chen C-H, Tsai M-T
American College of Gastroenterology Clinical Guideline: Diagnosis and Management of Gastroparesis
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