can you inject b12 sub q Cyanocobalamin Vitamin Injection 1000 mcg — Mountainside Medical How to self-inject intramuscular vitamin

Improved glucose regulation Enhances insulin sensitivity and reduces metabolic inflammation

The plunger is set at 0.05ml, so push this down so there is no air in the barrel of the syringe

This impairment of DNA synthesis affects the rapidly dividing cells of the bone marrow earlier than other cells, resulting in the production of large, immature, hemoglobin-poor red blood cells (macrocytosis), as well as effects on white blood cells, including abnormal (hypersegmented) neutrophils and reduced overall cell counts (pancytopenia)

PMID 12446535

There is no good evidence for this, and it is worth being cautious about that framing