contraindicated for b12 injections CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL What You Need to Know

4,52,53 A less common but important genetic factor affecting homocysteine metabolism pertains to the CBS gene, which encodes the enzyme cystathionine beta-synthase (CBS)

But there isnt evidence to prove this. This gap between marketing claims and scientific evidence has persisted for decades, fueled partly by the placebo effect and partly by misunderstanding B12s actual role in the body

Specifically, vitamin B12 helps us metabolize food, produce red blood cells, and methylate DNA (more on this later)

Administering a dose of Vitamin B12 through an injection is a more efficient way of delivering the vitamin to the body, as it bypasses the inefficiency of the gut