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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Being Anemic, Low On B12 Cause Dizziness, Fatigue ?

hi my daughter has been getting dizzy and tired,we took her for a blood test and they rang me the day after saying she was anemic and low on b12,why has this happened as she eats all the right food which has plenty of iron,i cant get to see her doctor untill nxt week as theres no appts left till then,just worried incase they give her the b12 shots,i myself have suffered with this for many years just surprised my daughter is the same,di
posted on Mon, 9 Jul 2012
Twitter Wed, 4 Sep 2013 Answered on
Twitter Wed, 4 Sep 2013 Last reviewed on
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Rheumatologist,  's  Response
Hi. Vitamin B12 is a very important vitamin which is available only in non-vegetarian sources and is essential for red blood cell production and maturation. Deficiency of this vitamin is common in vegans and would lead to anemia and less commonly nervous system abnormalities. Iron is also important as is folic acid, and these three together are quint essential to prevent anemia. Anemia can result due to deficiency of any of these three substances, and any type of anemia is associated with fatigue/dizziness as the oxygen carrying capacity of blood reduces due to deficient hemoglobin. Other causes of Vitamin B12 deficiency include worms, absorption defects and pernicious anemia. So do not hesitate in treating her with Vit.B12 if it is the cause based on the tests. THank you.
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Does Being Anemic, Low On B12 Cause Dizziness, Fatigue ?

Hi. Vitamin B12 is a very important vitamin which is available only in non-vegetarian sources and is essential for red blood cell production and maturation. Deficiency of this vitamin is common in vegans and would lead to anemia and less commonly nervous system abnormalities. Iron is also important as is folic acid, and these three together are quint essential to prevent anemia. Anemia can result due to deficiency of any of these three substances, and any type of anemia is associated with fatigue/dizziness as the oxygen carrying capacity of blood reduces due to deficient hemoglobin. Other causes of Vitamin B12 deficiency include worms, absorption defects and pernicious anemia. So do not hesitate in treating her with Vit.B12 if it is the cause based on the tests. THank you.