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There is also recent data which suggest that genetic alterations of the receptor by which B12 is transported into nerve tissue and the brain, may lead to a lower B12 uptake
(d) CT in B12-treated cells as compared to non-B12 is shown for the median CT ratio for all genes for which a score could be calculated is plotted
Heres why: Ongoing Absorption Issues: Many people have conditions that impair their ability to absorb B12 from food or oral supplements, such as pernicious anemia or gastrointestinal disorders
Other claims Recently, vitamin B12 injections and infusions have become popular among healthy people who dont appear to have a deficiency
Many factors inhibit the absorption of B12
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