INDICATIONS AND USAGE Cyanocobalamin is indicated for vitamin B 12 deficiencies due to malabsorption, which may be associated with the following conditions: Addisonian (pernicious) anemia Gastrointestinal pathology, dysfunction, or surgery, including gluten enteropathy or sprue, small bowel bacteria overgrowth, total or partial gastrectomy Fish tapeworm infestation Malignancy of pancreas or bowel Folic acid deficiency Cyanocobalamin Injection, USP is also suitable for the vitamin B 12 absorption test (Schilling test)

HCG Diet Protocol: Daily Rules Calorie limit : Maximum of 500 calories daily, typically divided between lunch and dinner Protein portions : 100g lean meat, fish, or poultry per meal Vegetable servings : One type of approved vegetable per meal Fruit allowance : One small apple, orange, or handful of strawberries daily Starch portion : One breadstick or toast slice without butter Beverage restrictions : Only water, black coffee, or plain tea Fat elimination : Complete ban on oils, butter, nuts, and full-fat dairy What Foods Are Allowed on the HCG Diet
And, in a lot of ways, it behaves like a metabolic leak. Heres what I mean
Medications can also influence B12 metabolism