Vitamin B12 is a great example of an often ignored but essential nutrient. Also known as cobalamin, vitamin B12 helps your body produce vital red blood cells and boost your energy levels, among other ...

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 ...

B12 can be supplemented in four ways, says Taylor Graber, MD, physician and owner of ASAP IVs, a mobile IV hydration and wellness company: Orally, through eating foods rich in vitamin B12 Taking a ...

In each of these instances, your doctor might recommend a shot or IV drip ... daily allotment of vitamin B12. There are many factors at play when considering injections and supplements.