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To date, management of vitamin B12 deficiency with vitamin B12 injections is currently well established, but new routes of vitamin B12 administration, particularly oral and nasal, are being studied [3,4]
If your protocol calls for twice-daily dosing at 250 mcg, the vial covers 10 days, well within the safe use period
If you dont treat a lack of vitamin B12, it can cause problems with your nerves or a type of anaemia called pernicious anaemia
One such condition is pernicious anemia, an autoimmune disorder that affects the stomach's ability to produce intrinsic factor, a protein necessary for Vitamin B12 absorption
That's why the Office of Dietary Supplements states that people over 50 should gain most of their B12 from dietary supplements or fortified foods
