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How long do B12 injections take to work for energy and blood markers
A b12 injection bypasses the digestive system entirely, ensuring 100% absorption
Common signs include fatigue, weakness, numbness or tingling in the hands and feet, trouble with balance, or cognitive changes
Several laboratory tests should be performed prior to treatment with cyanocobalamin, including serum vitamin B12, folate, iron, hematocrit, and reticulocyte count
Nowhere near freezing temperatures
Subcutaneous shots put B12 under the skin, in fatty tissue
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