A- Methylcobalamin is the active form of vitamin B12 with better nerve affinity and retention, while cyanocobalamin is synthetic and requires conversion in the body
Both studies administered B12 i.m., one used methyl-B12 at a dose of 500 g three times per week for 2 weeks, 63 the other used cyano-B12, 1000 g daily for 2 weeks
Both methods bypass the digestive system, providing superior absorption compared to oral supplements
Yes, B12 injections have an excellent long-term safety profile
However, certain factors such as age, diet, medical conditions, and medications can affect absorption, metabolism, and the benefits of b-complex injection