b12 oral or injection Vitamin for energy metabolism Think a Vitamin B12 injection

If you are a strict vegan, for example, you are more likely to suffer deficiencies of various nutrients

Therapeutic Rationale Behind the Standard Dose The 1000 mcg dose is chosen for its quick fix of vitamin B12

Unlike oral supplements, vitamin injections bypass the digestive system for maximum absorption and faster results

THF plays an important role in DNA synthesis, so reduced availability of THF results in ineffective production of cells with rapid turnover, in particular red blood cells, and also intestinal wall cells which are responsible for absorption

Those with gastrointestinal tract problems who cannot absorb vitamin B12 properly

In fact, many people regularly get injections with vitamin B12