Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Take vitamin B12 on an empty stomach in the morning or early afternoon to maximize absorption and avoid sleep disruptions.Vegans, older adults, ...

Administered through an injection into a muscle, vitamin B12 shots contain a synthetic version of B12, otherwise known as cyanocobalamin. Although even high dosages of vitamin B12 carry no risk of ...

B12 shots can have mild side effects like diarrhea and swelling at the injection site. Vitamin B12 injections are an effective way to treat a deficiency, but they're not for everyone. In fact ...

Vitamin B-12 has so many purposes and plays a vital role in our bodily functions. We need it, and the body will communicate ...

Read on to learn everything you need to know about vitamin B12 deficiency, supplements and injections. Vitamin B12 contains cobalt, hence its name, cobalamin. It's a vitamin your body uses to ...