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Injections are safe, cheap and highly effective as a replacement therapy for B12
Note that the numbers in parentheses (1, 2, etc.) are clickable links to medically peer-reviewed studies
These injections use hydroxocobalamin, and research indicates that oral supplementation can offer absorption comparable to injections in many situations
Vitamin B12 deficiency that is allowed to progress for longer than three months may produce permanent degenerative lesions of the spinal cord
Statements about average outcomes reference published clinical trial data and patient-reported experiences, which may differ from individual results
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