do b12 injection work How Quickly Does Shot Work? Does It Help to Lose Weight? B12 Injections - Maryland Plastic
Description
But, if you have a severe or chronic vitamin B12 deficiency, you may need repeated shots until the levels are replenished, followed by occasional maintenance shots

Those with a history of heart, liver or kidney problems should consult their doctor before taking over-the-counter B12 supplements

In contrast, IM injections can be painful, and are more error-prone than injecting into fat

Theoretically, I would love to give my patients who first got a J&J vaccine an mRNA booster shot
What are the risks of B12 injections
Up to 60% of people have a version of this mutation leading to a decreased ability to absorb B12
