B12 Vitamins

B12 Vitamins

What is vitamin B12 (Hydroxocobalamin Vitamin) and what does it do?

Vitamin B12 is required by the body for the healthy development of red blood cells in the bone marrow, in addition B12 vitamin is used for physical growth and development, absorption of folic acid and carbohydrates from diet.

As the body’s daily requirement of B12 is very small, deficiency may take years to developed or be noticed. When deficiency does occur, the formation of abnormally large red blood cells (called macrocytes) with limited capacity to carry oxygen gives rise to anaemia.

For B12 to be absorbed and used by the body it needs to undergo a specific process.  The presence of hydrochloric acid in the stomach causes B12 vitamin to separate from the protein to which it normally attaches in food and to combine with a different protein present in the stomach called intrinsic factor, this helps absorption by the body. In some cases people may have a condition in which their body lacks production of intrinsic factor causing them to have what is called Pernicious Anaemia which stops them from absorbing B12 vitamin.

B12 vitamin or Hydroxocobalamin injection in normally given for:

  • Addisonian pernicious anaemia
  • Tobacco amblyopia (Poor sight caused by toxins such as tobacco)
  • Leber’s atrophy (Degeneration of the optic nerve resulting in loss of central vision)
  • Treatment/Prevention of the microcytic anaemia due to deficiency in vitamin B12)

Lack of B12 vitamin can cause the following symptoms:

  • Sore mouth and tongue
  • Poor dental health and bleeding gums
  • Numbness and tingling in arms and legs
  • Memory loss
  • Mood changes
  • Depression and anxiety
  • Breathlessness
  • Feeling tired all the time
  • Brittle nails
  • Vertigo
  • Hair loss
  • Insomnia
  • Dry Skin
  • Blurred vison
  • Infertility
  • Irritability
  • Linked to long term dementia
  • Rosacea
  • Muscle aches and joint pains

Benefits of B12 vitamin injections


  • Helps with digestion
  • Helps with heart health such as prevention or heart attack or stroke
  • Boosts energy levels
  • Prevents memory loss
  • Enhances the nervous system
  • Lowers risk of neurodegenerative disease, such as Alzheimer’s disease and Dementia.
  • Boosts Mood and improves sleeping pattern
  • Reduces hair breakage
  • Helps nails to become stronger
  • Promotes healthier skin
  • Improves metabolism and weight loss

Recommended Daily Amount of Vitamin B12

According to the NIH, the (RDA) for vitamin B12 is:

  • Infants 0–6 months: 0.4 micrograms
  • Infants 7–12 months: 0.5 micrograms
  • Toddlers 1–3 years: 0.9 micrograms
  • Children 4–8 years: 1.2 micrograms
  • Children 9–13 years: 1.8 micrograms
  • Adult men and women over age 14: 2.4 micrograms
  • Women who are pregnant: 2.6 micrograms
  • Women who are breastfeeding: 2.8micrograms