The trade-off: Injections deliver the molecule most efficiently, but they dramatically raise the "risk floor" due to issues like sterility and systemic allergic responses
Forms of B12 supplements available include: Cyanocobalamin : The most common and cost-effective form in over-the-counter supplements Methylcobalamin : A naturally occurring form, often marketed as superior though evidence for clinical advantage is limited Hydroxocobalamin : The preferred form for intramuscular injection in the UK, used therapeutically for pernicious anaemia and confirmed deficiency [4] Dosing considerations depend on the indication
While most individuals obtain sufficient amounts of vitamin B12 through their diet, some individuals may require supplementation due to certain health conditions or lifestyle choices that can lead to vitamin B12 deficiency
Danza, G
With a 15% bulk discount on orders of five or more vials of the same size, five 100mg vials drop from 230,000 to 195,500
NNMT nicotinamide N-methyltransferase, Gene ID 4837 (11q23.2, 8 exons, EC 2.1.1.1)