subcutaneous injection sites for b12 vitamin Subcutaneous Injection Optimal B12 Injection Sites for
Description
And that increases the chance of breakthrough infections

doi: 10.1016/j.tcb.2014.04.002

Retrieved 9 November 2020

Vitamin B-12 is mainly found in animal products (fish, meat, eggs, poultry, and dairy)
Therefore, it is crucial to work with a healthcare provider to monitor your blood levels, specifically looking at Methylmalonic Acid (MMA) and Homocysteine, which provide a more accurate picture of your intracellular B12 status than standard serum B12 tests

They are also appropriate for men who do not achieve adequate testosterone levels with gels or transdermal options
