When Is Excess Vitamin B12 Harmful?

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When Is Excess Vitamin B12 Harmful?

Excess of Vitamin B12 could be harmful

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What is the function of B12?

It is a water-soluble vitamin that is needed by all cells of the body, as evidenced by the role played in following functions: 

  • DNA synthesis and bioavailability of amino acids

  • Maintenance of brain functions and production of red blood cells

  • Absorption of folic acid


How we take B12?

We take Vitamin B12 from many foods that we consume every day: 

  • Red meat

  • Poultry

  • Seafoods

  • Egg

  • Enriched corn flakes.

However, vitamin B12 deficiency can be seen in many people.


What does B12 deficiency cause?

  • Irreversible nerve injury (Conditions such as psychosis, mania and dementia)

  • Anemia and tiredness (shortness of breath and irregular heartbeat)

  • Numbness/tingling in hands and feet

  • Vulnerability to effects of infection is among the serious complications that can be caused by vitamin B12 deficiency; thus vitamin B12 levels should be monitored and supplements should be used, if necessary.


What causes B12 deficiency?

  • Deficient intake of animal-originated foods,

  • Pernicious anemia (an immune system disorder

  • Disorders of small intestine

  • Gastritis, celiac disease and inflammatory bowel disease


What does excess B12 cause?

  • Panic attack
  • Stress, bad temper
  • Insomnia
  • Abdominal pain, nausea, diarrhea
  • Acnes are among the harmful complications caused by excess B12 intake.         



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