b12 injection as preventive medicine The Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Cobalamin (vitamin B12) and Folate

We do not provide usage guidance, nor do we endorse any application beyond lawful, institutional, and investigational research

Also, injections are not typically recommended for people without a vitamin B12 deficiency

If you have a genuine B12 deficiency and symptoms are linked to it, some people notice improvement in energy over days to a couple of weeks

Continuous Use There is limited research on optimal cycling strategies (periods of use followed by breaks) versus continuous use

B12 is essential for the methylation reactions required to produce the lipids and proteins that constitute myelin

Its impossible to meet all your nutritional needs on so few calories