The main causes of a vitamin B12 deficiency are as follows: Malabsorption due to poor intestinal health (inflammation, bacteria, fungal infection, parasites, disturbed intestinal flora) due to a lack of transport molecules (intrinsic factor), genetic diseases (cobalamin disease) or medications that hinder uptake
doi: 10.1016/s0140-6736(08)61246-5 115 FonsecaVADevriesJHHenryRRDonsmarkMThomsenHFPlutzkyJ
Surve D, Fish A, Debnath M, Pinjari A, Lorenzana A, Piya S, et al
What if you miss a dose If you miss your scheduled injection day by 1 to 2 days, take it as soon as you remember and resume your regular schedule the following week
Pharmacy partners can vary by state, medication, availability, and fulfillment needs
The reduced form is abbreviated GSH