B12 injection shots

Vitamin B12 deficiency is a relatively common condition that can affect children and adults of all ages. Besides a low dietary intake, other factors that may cause this vitamin deficiency include gastric bypass surgery and diseases associated with gastrointestinal (GI) malabsorption.

Vitamin B12 is fast acting, and may be the perfect supplement to add to your diet to provide that overall healthy and energetic feeling.


Vitamin B12 contributes to normal :

  • Energy-yielding metabolism -energy boost
  • Functioning of the nervous system
  • Homocysteine metabolism
  • Psychological function
  • Red blood cell formation
  • Function of the immune system
  • Reduction of tiredness and fatigue

Vitamin B12 has a role in the process of cell division – Deficiency of vitamin B12 inhibits purine and thymidylate syntheses, impairs DNA synthesis, and causes erythroblast apoptosis, resulting in anemia from ineffective erythropoiesis.

Side effects

Pain/redness at the injection site, mild diarrhea, itching, or a feeling of swelling all over the body may occur. B12 injections may cause low potassium levels in the blood (hypokalemia). In some cases acne can flear up if client is tend to acne, but usually in few months it go away.

Do I need it?

B12 is needed if you:

  • suffer from fatigue and low energy.
  • have problems absorb nutrients due to certain conditions.
  • have weaker immune systems.


Recovery from B12 deficiency takes time and client may not experience any improvement during the first few months of treatment. Improvement may be gradual and may continue for up to 6 to 12 months. It is recommended to build up vitamin B12  once a week for 3 weeks and keep it to once a month after that.