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This is because a standard serum test measures the total amount of B12 in your blood, not the amount that is actively available for your cells to use
Hyperhomocysteinemia and Alzheimer's disease: A systematic review
From choosing the right dosage and injection site to maintaining strict hygiene and proper storage, avoiding these common mistakes ensures safer and more effective treatment
If that happens to be your issue, taking your B vitamins or B12 in the form of injection, might resolve the issue
Vitamin B12 also comes in oral forms
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