https://www.selleckchem.com/pr....oducts/azd5153-6-hyd
Vitamin B-12deficiency is widespread inmany parts of the world,affecting all age groups and increasing with age.It is primarily due to a low intake of animalsourcefoodsor malabsorption. The measurement of bioavailability of vitamin B-12 is etiologically important in deficiency but is limited due to the use of radioactive isotopes like [57Co]- or [14C]-cyanocobalamin. The aim of this study was to measure the bioavailability of [13C]-cyanocobalamin in humans and to assess the effect of parenteral replenishment o
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