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Doctor insights on: B12 Folic Acid And Low Thyroid Function

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Rbc lo. Hgb, hct ok. Mch & MCV hi. Ferritin ok. B12 & folic acid hi. D lo. Thyroid ok. Rf hi. Repeatable. Tired, weak and unfocused. Cause?

Rbc lo. Hgb, hct ok.  Mch & MCV hi.   Ferritin ok.  B12 & folic acid hi. D lo. Thyroid ok. Rf hi. Repeatable.  Tired, weak and unfocused. Cause?

Additional info: What are the actual number values associated with the rbc, hgb, hct, mch, and mcv? This will help establish significance of these high or low values. Do you have relatives with RA or other autoimmune disease? Do you have any history of hepatitis or liver disease (can cause simultaneous high rf and high mcv)? Are there other lab test results for autoimmune disease (ana)? ...Read more

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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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If you are anemic but have normal B12 and folate (folic acid), (folic acid) could there be another nutrient related to folate (folic acid) or to B12 that is low?

If you are anemic but have normal B12 and folate (folic acid), (folic acid) could there be another nutrient related to folate (folic acid) or to B12 that is low?

Well, sure: Iron deficiency is the most frequent cause of anemia. If you have already been checked for that, your provider needs to look at several other things not necessarily related to nutrition to determine the cause. Don't just take iron, though, unless your tests show that it is deficient. ...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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Is a folate (folic acid) level of 10 a normal level? Does is it matter if my B12 level is low (276)? My homocysteine is 12.

Is a folate (folic acid) level of 10 a normal level? Does is it matter if my B12 level is low (276)? My homocysteine is 12.

See below: Your folate (folic acid) level is normal. However, one needs B12 for folate (folic acid) to work properly. Depending on the reason for low B12 you may need to take it by injection. See this site for more info on folate (folic acid). http://www.webmd.com/diet/folic-acid. ...Read more

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My serum folate (folic acid) is 16.4ug/L & B12 is 221ug/L & serum ferritin is 22ug/L. Why is folate (folic acid) on the high end of normal & others on the low end of normal?

Nothing to worry abt: These are all in the normal range, and there is some give and take regarding the laboratory ability to give an exact value. Don't worry about these values unless they are way higher or way lower than normal. ...Read more

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When both folate (folic acid) and B12 are low, which should you start to take first, and why?

When both folate (folic acid) and B12 are low, which should you start to take first, and why?

B-12 first: Treating a B-12 deficient patient with folate (folic acid) may correct the anemia, but not stop the progression of irreversible nerve damage. It masks the B12 deficiency, in other words. ...Read more

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Hi I started rec B12 injec recently. Felt much better however Tues I fainted. My r cell folate (folic acid) was 346 before injs could this be low off inj ?

Utility of B12: The proven utility of B12 injections for symptoms of fatigue, listlessness, general malaise is an age old debate. It certainly has its role in certain pathologies such as neuropathies, dementia, and certain forms of anemia. In general, I look for other reasons to explain all the things people think B12 cures which have never been proven. B12 would not LOWER your folate (folic acid) levels anywhere in the body ...Read more

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Unintentional weight loss. Low iron levels low b12 and folate (folic acid). Can't get answers. ?

Unintentional weight loss. Low iron levels low b12 and folate (folic acid). Can't get answers. ?

Wt loss, low iron : Could be from a vast number of possibilities. This question requires more information. A good history, physical exam and scrutiny of current , past and future bloodwork will all help piece together this puzzle. In general low iron in healthy premenopausal women is usually from menstruation or pregnancy. The weight loss is somewhat worrisome. Highly recommend a formal consultation with a doctor. ...Read more

Dr. Su Fairchild
1,203 doctors shared insights

Hypothyroidism (Definition)

The thyroid gland is an endocrine organ located in the front part of the neck. Its role is to make thyroid hormones, which control the way cells use energy. Hyperthyroidism results when the thyroid gland is overactive and too much thyroid hormone is produced, which speeds up metabolism. This results in weight loss, a quick heartbeat, sweating, nervousness, ...Read more


Dr. Oscar Novick
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more