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Bonfiglio, V., et al
Pre-care Aftercare Further Questions Testimonials How long does B12 injection shot last
Although vitamin B 12 deficiency is known to damage the myelin sheath covering cranial, spinal, and peripheral nerves, the biochemical processes leading to neurologic damage in vitamin B 12 deficiency are not yet fully understood (22)
One reason: Changes in stomach acid can be part of aging, and you need hydrochloric acid in your stomach to absorb B12
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