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Doctor insights on: All About Vitamin B12

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Symptoms of vitamin B12 low?

Symptoms of vitamin B12 low?

Many: Main ones are: fatigue, neurological symptoms (like numbness ; tingling), GI symptoms (like nausea, GI upset) and weight loss. ...Read more

Dr. Randy Baker
973 doctors shared insights

Vitamin B12 (Definition)

Vitamin B12 is a vitamin which is a kind of nutritional agent ...Read more


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What food contains vitamin b12?

What food contains vitamin b12?

B12: B12 principally derives from animal sources and eggs. Dairy has little. Select soy can provide some. More vegan foods are being supplemented with B12, as B12 defici,ency is common among vegans. See www.vegetarian.org.uk/factsheets/b12factsheet.html ...Read more

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Can you overdose on vitamin b12?

Virtually nontoxic: At any dose. I do not believe that you will find very much written on the toxic effects of B12 although I have had a couple of patients who took something on the order of 10x what I had prescribed them was already in the 10,000IU range so they were taking about 100,000IU daily for several weeks and the patient developed diarrhea. When he stopped that resident, within several days diarrhea stopped ...Read more

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Why would ihave low vitamin b12?

Why would ihave low vitamin b12?

Possible causes: You could have a low b-12 if you are vegetarian, have been for several years and don't take supplemental b-12. It could be low if you don't make intrinsic factor. This is made in the stomach and is needed to absorb b-12. Lack of intrinsic factor is usually an autoimmune disorder. You could have low b-12 due to taking proton pump inhibitors for a long time as stomach acid is needed as well. ...Read more

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What does high vitamin B12 mean?

What does high vitamin B12 mean?

Needs evaluation: B12 is not toxic so high B12 due to taking it is not bad. If someone has high B12 without taking it then it can be a sign of serious problems including liver ; kidney disease, myelproliferative disorders including leukemia ; polycythemia vera ; hypereosinophilic syndrome. High B12 does not cause these but caused by them. Further tests are needed to find the underlying cause: http://bit.Ly/1hvpcy7. ...Read more

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My vitamin b12 is 241 is this bad?

My vitamin b12 is 241 is this bad?

Borderline: I assume the units are pg/mL. Consider following this up with a functional assay such as methylmalonic acid and/or taking a routine supplement. Your physician is your best guide. ...Read more

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Is 1000 iu of vitamin B12 too much?

Is 1000 iu of vitamin B12 too much?

Check levels first: As a supplement or replenishing a B12 deficiency? I would check the B12 levels first to make sure. Unless you have no meat intake or have difficulties with absorbing in stomach from a stomach surgery or have pernicious anemia. ...Read more

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Is vitamin B12 2500 mgs bad for you?

Is vitamin B12 2500 mgs bad for you?

B-12: No, that dosage is perfectly fine. There has not been an upper limit set for oral vitamin b-12. Generally speaking if and individual has a vitamin b-12 deficiency confirmed by test , it is either given im or sc. ...Read more

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What mineral is part of vitamin b12?

What mineral is part of vitamin b12?

Cobalt: There is a tiny cobalt ion in the middle of this huge molecule. ...Read more

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What are the benefits of vitamin b12?

What are the benefits of vitamin b12?

Several: Primarily, B12 supports the production of red blood cells and supports the nervous system (brain, spinal cord, and all the nerves all over your body). ...Read more

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