how long does vitamin b12 injection stay in your system a Shot Last? Duration, Benefits & Timing How Long Do the Benefits

To help bypass any barriers to absorption in the GI tract, many healthcare providers recommend B12 injections for deficiency, but research shows that very high doses of oral B12 (1,000 to 2,000 mcg once a day) can normalize serum B12 levels to a similar extent with minimal side effects

A B12 deficiency can also lead to health problems that can lead to major birth defects

Mild redness, tenderness, or temporary swelling at the injection site may occur

Vitamin B 12 is also available in the form of pills that dissolve under the tongue, and as a nasal spray and nasal gel

The spray is a great solution for those who fear the injections or those who do not want the inconvenience of either the weekly self-injections at home or having to come to the clinic every week for them

1 2 "Blind loop syndrome: MedlinePlus Medical Encyclopedia"