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Folate deficiency can be secondary to vitamin B 12 deficiency or a defect in homocysteine methyl transferase that leads to a "folate trap" in which is an inactive metabolite that cannot be recovered. [1] Diagnosis is typically confirmed by blood tests, including a complete blood count, and serum folate levels. [1]
Vitamin B 12 deficiency can be determined, but not always. [14] This means it measures forms of vitamin B 12 that are "active" and can be used by the body, as well as the "inactive" forms, which cannot. [150] Vitamin B 12 deficiency can be found within normal levels, so clinical symptoms should be taken into account when a diagnosis is made. [2]
A defect in homocysteine methyltransferase or a deficiency of B 12 may lead to a so-called "methyl-trap" of THF, in which THF converts to methyl-THF, causing a deficiency in folate. [97] Thus, a deficiency in B 12 can cause accumulation of methyl-THF, mimicking folate deficiency.
Just don’t exceed 1,000 micrograms of total daily folate, the NIH says, as high doses can hide or exacerbate B12 deficiency and potentially increase risks of colorectal cancer. Multivitamins (maybe)
Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia —a condition characterized by larger than normal red ...
Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss
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