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Special Test Needed For Vitamin B12 Deficiency

Vitamin B12 is the largest vitamin and because it is so large it can not be absorbed too well orally. As many peoiple age they lose the ability of their stomach to make intrinsic factor and this can contribute to vitamin B12 deficiency. B12 deficiency is also common in vegans as nearly all B12 comes from animal sources. Plants do not require B12 for any function, and therefore have no mechanisms to produce or store B12. There are many myths out there that claim B12 can be obtained from...

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