b12 injection sq or im Compounded Cyanocobalamin (Vitamin B12) How to Give a B12

It helps produce red blood cells, maintains a healthy nervous system, and aids in DNA synthesis

[51] Diagnosis [edit] According to one review: "At present, no 'gold standard' test exists for the diagnosis of vitamin B 12 deficiency and as a consequence the diagnosis requires consideration of both the clinical state of the patient and the results of investigations." [52] The vitamin deficiency is typically suspected when a routine complete blood count shows anemia with an elevated mean corpuscular volume (MCV)

Last reviewed January 2026

Studies suggest that low levels of Vitamin D and B12 are linked to mood disorders like depression and anxiety