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Doctor insights on: What Can High Folate And B12 Tests Mean For Adults

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What can high folate (folic acid) and B12 tests mean for adults?

What can high folate (folic acid) and B12 tests mean for adults?

High folate (folic acid) and B12: Although low levels of folate (folic acid) and vitamin B12 can cause serious medical problems, there is no problem whatsoever with having high levels of these vitamins. ...Read more

Folic Acid (Definition)

Folic acid, AKA folate (folic acid) (vit B9), is recommended for all women wanting to get pregnant -- 0.4mg (400mcg) daily, which is important for preventing birth defects like spina bifida. Women w/ a hx these disorders should take 10x that amt daily -- 4mg (4000mcg) through the 3rd month of pregnancy. It won't affect fertility, chances of conception/twins, or periods. ...Read more


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Had bloods done I've got high folate (folic acid) levels of 20:1 what does this mean I'm male b12 & hemoglobin are OK ?

Had bloods done I've got high folate (folic acid) levels of 20:1 what does this mean I'm male b12 &  hemoglobin are OK ?

Normal: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, Serum folate (folic acid) level of 20.1 is perfectly normal and is not a cause for any concern. ...Read more

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When I have complete blood count done, B12 and folate (folic acid) are a tad high, then when a separate blood test is done for B12 and folate (folic acid), both are ok. Causes?

When I have complete blood count done, B12 and folate (folic acid) are a tad high, then when a separate blood test is done for B12 and folate (folic acid), both are ok. Causes?

Doesn't make sense.: If the same test done for the levels, and shows different results, there may also be a lab error. I would repeat one again only for b 12 and folate (folic acid) and compare. ...Read more

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My recent lab tests came back with Iron level of 30, transferrin of 20%, low vitamin D, high B12 and high folate. Is this cause for concern?

My recent lab tests came back with Iron level of 30, transferrin of 20%, low vitamin D, high B12 and high folate. Is this cause for concern?

Lab values: Low iron exists. Low vitamin D exists. These are not major threats but should be remedied. Take iron daily as a supplement. And add Vit d as a supplement. A real good iron pill is vitron C A good dose of Vit D is 1000 units per day ...Read more

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What does it mean if both my B12 & Folates (folic acid) are low in one blood test but just B12 in repeat blood test?

What does it mean if both my B12 & Folates (folic acid) are low in one blood test but just B12 in repeat blood test?

Food supplements: Folate is added to many foods, e.g. cereals. If your folate level was marginally at the first reading, it may have been corrected though normal food intake. B12 absorption is more complex and may need injections to supplement. With the exception of B12 and vitamin D you do not need supplements if you are eating a mixed diet. And testing for "micronutrients" is a waste of money. ...Read more

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What happens if you have an abnormally high B12 level and high folate (folic acid) level?

High B12 Folate (folic acid): I understand your concern. Researchers in Denmark have found that higher than normal levels of B12 may indicate a person is at risk of developing Lung, Colon and Liver cancer. National Institute Health Research stated-High folate (folic acid) does not appear to increase the risk of anemia among healthy people with low B12 levels See your physician for evaluation tests and treatment ...Read more

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What would cause elevated B12 and folate (folic acid) levels?

What would cause elevated B12 and folate (folic acid) levels?

Stop worrying: We see these from time to time. They are no cause for concern. Reference ranges are set for the vast majority of people. Just be happy. Elevated B12 has some arcane significance in hematology but it does not apply to healthy people. Just be glad. ...Read more

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Are elevated B12 and folate (folic acid) levels bad? Cause of this? How to bring them down to normal levels?

Are elevated B12 and folate (folic acid) levels bad? Cause of this? How to bring them down to normal levels?

Needs evaluation: High B12 & folate (folic acid) is not dangerous per se (these vits. Have no known toxicity)& may not be serious, but high B12 may paradoxically be a sign of B12 deficiency & may also be caused by acute or chronic liver disease or leukemia, so deserves further evaluation-see http://healthyeating.Sfgate.Com/high-vitamin-b12-serum-levels-6037.Html high folate (folic acid) may be a sign of B12 deficiency or blind loop syndrome. ...Read more

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Are elevated B12 and folate (folic acid) levels a problem? My most recent blood work showed these both to be high...Any danger?

No danger: These are temporary elevations. These vitamins dissolve in water and any extra will be water out in your urine. Provided your kidneys are normally functioning. ...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


Dr. Kristi Woods
632 doctors shared insights

Folate (Definition)

Folate is a vitamin which is a kind of nutritional agent ...Read more