If you have had weight-reduction surgery or have pernicious anemia, celiac disease, or Crohn's disease, B12 injections may be recommended
For example, if you are being treated for type 2 diabetes with medications such as metformin, your ability to absorb vitamin B12 from the digestive tract may be reduced
Some research suggests that these doses can be as effective as intramuscular injections in improving serum B12 levels (7)
[1] Initial human trials showed that it retains the lipolytic properties of human growth hormone without stimulating IGF-1 production
Common Side Effects: Mild and temporary soreness, redness at the injection site, or mild diarrhea are the most common reactions
Archived from the original on June 27, 2010