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Doctor insights on: Why Would I Have High B12 Levels In My Blood

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A blood test showed that i'm B12 deficient. Serum B12 level of 186 pg/ml, should I take vitamin B12 supplements?

A blood test showed that i'm B12 deficient. Serum B12 level of 186 pg/ml, should I take vitamin B12 supplements?

B12: this low will likely cause dementia, spinal cord degeneration and peripheral neuropathy. Keep your level above 550 for the rest of your life. Recovery takes about a year in a young person. I suggest you take liquid sublingual weekly for 3 months then bi weekly thereafter. Its important to check a level after you cut back to twice a month. Use 1 1/2 dropper and hold it under the tongue for 30 sec. ...Read more

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Dr. Randy Baker
995 doctors shared insights

Vitamin B12 (Definition)

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


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Why would I have high B12 levels in my blood?

Why would I have high B12 levels in my blood?

High intake: Since vitamins, by definition, are substances that we cannot make ourselves, a high level can only come from high intake. Vitamin B12 is not very toxic, but in high amounts can cause diarrhea, edema and increase risk of clots. If you are taking a vitamin B12 supplement, or injections you may want to cut back (discuss with your doctor if you are taking under a doctor's supervision). ...Read more

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Is a blood B12 level of 1400 too high?

Is a blood B12 level of 1400 too high?

No: It is higher than the lab reference range, but it is fine and nothing to worry about. ...Read more

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Can dehydration cause high levels of B12 in blood?

Can dehydration cause high levels of B12 in blood?

No: Chronic myelogeneous leukemia, promyelocytic leukemia, polycythemia vera and also the hypereosinophilic syndrome can result in elevated levels of B12 mostly from increased production of haptocorrin. In addition, because the liver stores b12, liver diseases such as acute hepatitis, cirrhosis, hepatocellular carcinoma and metastatic liver disease can also cause a rise in serum b12. ...Read more

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What would it point to if urine homocysteine levels are high and chronic high b12 levels for years? Blood homocysteine is normal.

What would it point to if urine homocysteine levels are high and chronic high b12 levels for years? Blood homocysteine is normal.

Means nothing: This pathologist thinks the whole homocysteine business is a fad driven by fear of liability. Nobody knows what to do with the data, beyond advising healthy lifestyles. High B12 reflects the fact that you make mirror the binder protein than other folks. It's you. Stay physically fit and be thankful for good health. ...Read more

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What causes a high B12 blood level. My doctor said I am at 902. Not significantly high.

What causes a high B12 blood level. My doctor said I am at 902. Not significantly high.

Meat intake?: B12 comes mostly from meat and liver. You might have a high meat intake or maybe your body is efficient at absorbing it. Its good to have B12 since you need it to make red blood cells. There is no harm to what you described. ...Read more

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What blood disorders/disorders can cause elevated B12 levels and low iron?

What blood disorders/disorders can cause elevated B12 levels and low iron?

Polycythema vera: Some times polycytemia vera can cause, but rare, this needs further work up, especially low. Iron that is most of the time due to bleeding. ...Read more

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If my kidneys and liver are ok and my blood is 46.Why i would have a very high level of B12 in my blood.Is it because i took difen B12 from 8 months?

Gene mutations: You could have gene mutations that are interfering with the methylation pathways causing an inactivated from of b-12 to accumulate in your blood. Mthf and cbs are the genes that can be mutated causing this effect. ...Read more

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