Vitamin B12 supports the health of blood and nerve cells, but some people's bodies are unable to absorb it. In this case, a doctor may recommend injections.

6 best vitamin B12 supplements to take, ... Get A Drip vitamin B12 injections. ... Humans can’t produce B12 by themselves so rely on these natural sources for the levels they need to function ...

Vitamin B12, also known as cobalamin, has many diverse functions in the human body. For this reason, its deficiency produces a spectrum of clinical manifestations. About 15 percent of adults above ...

While more studies are needed to see how vitamin B12 affects metabolism in humans, ... Vitamin B12 injections are generally safe, with few side effects and the possibility of allergic reactions.

Dear I.F.: The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg ...

Many vitamin B12 supplements contain much more of the vitamin than the body needs. No research has yet found any side effects from taking too much vitamin B12. Learn more here.

Your doctors might advise or prescribe high-dose vitamin B12 supplements. However, if symptoms become more pronounced, you might need weekly vitamin B12 injections.

The NHS website notes that some people with anaemia caused by a vitamin B12 deficiency report experiencing paraesthesia, or as it's more commonly known, pins and needles. This sensation, described ...