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Causes of Vitamin B12 Deficiency, 1. Inadequate Intake, 2. Malabsorption (Gastric causes), 3. Malabsorption (Intestinal causes), 4. Bacterial Overgrowth or Parasite, 5. Drug induced, 6. Genetic B12 Injections vs. Oral Supplements: Which Is Better? Hydroxocobalamin (B12) 1000mcg mL Injection 30mL MDV McGuff A Guide to Vitamin B12 Deficiency: Causes and Treatment Learn With NiaHealth Should You Use Sublingual B12 Over Capsules & Shots?
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