Vitamin B12 (Cobalamin)

Vitamin B12  (Cobalamin)
Vitamin B12, also called Cobalamin, is an essential vitamin in the manufacture of red blood cells and plays a vital role in neurological functions and metabolism and the manufacture of DNA material found in most body cells.
Situations in which vitamin/mineral should be added

Doctors may advise supplementing with vitamin B12 for the following conditions:
  1. Cardiovascular disease.
  2. dementia.
  3. To improve athletic performance.

Symptoms of Vitamin B12 deficiency

Symptoms of vitamin B12 deficiency include:
  1. Paleness of the skin.
  2. Inflammation and redness of the tongue.
  3. mouth ulcers;
  4. feeling numb
  5. Change in the way you walk and move.
  6. Disturbed or blurry vision.
  7. Irritation.
  8. Melancholy.

Symptoms and risks in case of an overdose of vitamin B12

High doses of vitamin B12, such as those used to treat a deficiency of this vitamin, can cause:
  1. headache.
  2. Nausea and vomiting.
  3. Diarrhoea.
  4. Feeling tired or weak.
  5. Tingling of the extremities.
Symptoms of Vitamin B12 deficiency


Vitamin B12 can be obtained from pharmacies without a prescription in a wide variety of preparations sold without a prescription. In the case of hydroxocobalamin, it can be given by injection only and under medical supervision.

Vitamin B12 sources

The most important natural sources of vitamin B12 include:
  1. The liver is the best source of vitamin B12.
  2. the kidneys.
  3. Lean meat.
  4. Fish.
  5. Chicken.
  6. Eggs.
  7. Milk and dairy products.
The dose is determined individually according to the type and severity of the deficiency, which can be understood through the following:
  • Pernicious anaemia in adults Treatment is with a dose of 1,000 mcg twice in the first week and then 100-200 mcg every month by injection until the anaemia disappears.
  • Serious Deficiencies A higher dose of up to 1,000 mcg of B12 may be given in combination with folic acid in severe deficiencies.
  • For children, a dose of 30-50 mcg per day is given.
  • In nutritional deficiencies, a dose of 6 mcg per day is given orally, while children are delivered 2-3 mcg per day.
  • Deficiencies caused by a genetic defect prevent the benefit from the vitamin, where a dose of 250 micrograms is given every three weeks for life.

Recommended daily dose Vitamin B12

0.4 - 2.4

0.4 - 2.4


Types of foods that contain Vitamin B12  (Cobalamin)

  1. Red meat
  2. fish
  3. liver
  4. eggs
  5. the milk
  6. Cheese
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