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What causes lack of b12?

  • 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 are the side effects of too much vitamin B12? That being said, too much vitamin B12 side effects can include diarrhea, itching, blood clots, numbness in the extremities, and severe allergic reactions. Excessive vitamin B12 may also increase the risk of prostate cancer. Some medications that may interact with vitamin B12 include anticonvulsants,…

    What are the symptoms of too much vitamin B12? Other side effects of taking too much vitamin B12 include headache, dizziness, diarrhea, indigestion, nausea, vomiting, back pain, joint pain, swelling, anxiety, nervousness and lack of coordination. There is also risk of contamination with the supplement of this vitamin.

    Can too much vitamin B12 be harmful? Most vitamins and minerals can be toxic if you take too much. However, vitamin B-12 is a little different. Your system only absorbs a small amount at a time and gets rid of what it doesn’t need, which means it’s generally safe, even if you take too much.

    What are the symptoms of a lack of B12?

    What are the symptoms of a lack of B12? Anaemia and anaemia caused by a lack of vitamin B12 can result in symptoms which include: Extreme tiredness or fatigue. A lack of energy or lethargy. Being out of breath. Feeling faint. Headache. Ringing in the ears (tinnitus) Lack of appetite.

    What are the side effects of low vitamin B12? Some of the most common side effects of vitamin B12 deficiency include weakness, anemia, constipation, decreased appetite and unintentional weight loss.

    What are the symptoms of vitamin B deficiency? Symptoms of Vitamin B deficiency. The list of signs and symptoms mentioned in various sources for Vitamin B deficiency includes the 6 symptoms listed below: Cheilosis. Photophobia. Sore throat. Glossitis. Fissure tongue.

    Do I need vitamin B12 supplements? Vitamin B12 is an essential nutrient that is important for red blood cell production, food metabolism and nerve health. Though most people get sufficient amounts of vitamin B12 from food sources such as meat, fish and dairy, you may require a supplement if you have a deficiency.