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What causes b12 deficiency?

  • It occurs due to decreased intake of the vitamin, increased requirements or poor absorption.
  • Decreased intake :
  • People in a strict vegan diet
  • Decreased absorption:
  • In the elderly especially due to lack of intrinsic factor that aids in B-12 absorption (pernicious anemia)
  • In people who have undergone surgery involving removal of the section of the bowel responsible for B-12 absorption
  • Atrophic gastritis
  • People on metformin for diabetes
  • People on chronic use of anti-acid drugs and protein pump inhibitors
  • The risk factors include:
  • Vegans
  • Pregnancy
  • Alcohol
  • Certain medications which block absorpition of vitamins

PreventionPrevention

By eating a balanced diet including meat, poultry, cheese, milk among others.

ComplicationsComplications

If untreated for a prolonged period it may lead to

  • Vascular disease including stroke, pulmonary embolism due to elevated homocysteine
  • Memory loss
  • Ataxia
  • Peripheral neuropathy
  • depression

What are the treatment options?What diet is recommended?How is this diagnosed?For informational purposes only. Consult a medical professional for advice.Reviewed by a panel of doctors. Source: Focus Medica. Was this helpful?

  • People also askWhat are the signs of lack of B12?What are the signs of lack of B12?The signs of vitamin B12 deficiency include exhaustion, rapid heartbeat, brain fog, and other symptoms, says Maggie Moon, RD, a Los Angeles–based nutritionist and owner of Everyday Healthy Eating.

    Symptoms

    The symptoms include:

    • Skin pallor and yellowing of Skin
    • Extreme weakness and fatigue
    • Sensations of pins and needles due to nerve damage
    • Glossitis and mouth ulcers
    • Breathlessness and dizziness
    • Mood changes: depression, psychosis and irritability
    • Some loss in sense of touch, walking and vision problems
    • Symptoms of dementia
    • Loss of appetite and weight loss

    CausesCauses

    • It occurs due to decreased intake of the vitamin, increased requirements or poor absorption.
    • Decreased intake :
    • People in a strict vegan diet
    • Decreased absorption:
    • In the elderly especially due to lack of intrinsic factor that aids in B-12 absorption (pernicious anemia)
    • In people who have undergone surgery involving removal of the section of the bowel responsible for B-12 absorption
    • Atrophic gastritis
    • People on metformin for diabetes
    • People on chronic use of anti-acid drugs and protein pump inhibitors
    • The risk factors include:
    • Vegans
    • Pregnancy
    • Alcohol
    • Certain medications which block absorpition of vitamins

    PreventionPrevention

    By eating a balanced diet including meat, poultry, cheese, milk among others.

    ComplicationsComplications

    If untreated for a prolonged period it may lead to

    • Vascular disease including stroke, pulmonary embolism due to elevated homocysteine
    • Memory loss
    • Ataxia
    • Peripheral neuropathy
    • depression

    What are the treatment options?What diet is recommended?How is this diagnosed?For informational purposes only. Consult a medical professional for advice.Reviewed by a panel of doctors. Source: Focus Medica. Was this helpful?What are the signs of lack of B12? The signs of vitamin B12 deficiency include exhaustion, rapid heartbeat, brain fog, and other symptoms, says Maggie Moon, RD, a Los Angeles–based nutritionist and owner of Everyday Healthy Eating.

    What foods are high in B12? Further dairy, eggs, and cheese are all good natural sources of vitamin B12. Vegetarian foods high in vitamin B12 include fortified cereals, fortified fruit juices, fortified tofu, yogurt, milk, cheese, eggs, vitamin water, and whey powder.

    What can deplete B12? Vitamin B12 and Stress What is the relationship between vitamin B12 and stress? The fact is, high levels of stress can deplete your body of B vitamins, which are essential for the nervous and circulatory systems. It can also reduce the absorption of nutrients in your system from the foods you eat and the supplements you take.

    What are the effects of lack of B12? In extreme cases, lack of B12 can damage the optic nerve or plug up the blood vessels in the retina, causing blurry vision, double vision, sensitivity to light, and even vision loss.