Once you have healthy stores of B12, theres no functional day-to-day benefit to having more of it
a surrogate marker of vascular health) in response to homocysteine reduction revealed that B-vitamin supplementation was accompanied by improved FMD in short-term ( 10.5 g/day) and breast cancer compared to the lowest quintile (4.3 g/day
B12 is added to certain foods, such as fortified fruit juices and breakfast cereals
Formulations of cyanocobalamin injection containing benzyl alcohol as a preservative should also be avoided in premature neonates and those with hypersensitivity due to its association with gasping syndrome (10-12)
If a rash, hives, swelling, or trouble breathing shows up, stop use immediately and seek medical care
These are legitimate research tools with defined mechanisms, not miracle compounds