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Vitamin B12 deficiency is linked to: Hematologic diseases, such as anemia Cardiovascular decline Neurological and psychiatric diseases Is vitamin B12 linked to cancer

Reconstituted solutions typically last 28 to 30 days refrigerated, or up to 90 days if the solution contains bacteriostatic water (which has a mild preservative effect from the benzyl alcohol)

Edwin Serrano, a neurology resident physician at MedStar Georgetown University Hospital, a B12 levels of about 300 picograms per milliliter is considered normal, and below 200 pg/ml is considered low

Gopal Grandhige, Jeff works closely with each patient to tailor protocols that support recovery, performance, and long-term wellness