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Bibcode:1994ApEnM..60.1495K

This then may lead to altered renal handling of holoTC and increased urinary excretion of vitamin B-12, as hypothesized above

9 Where IF is present, a deficiency can easily be overcome by oral supplementation of crystalline cobalamin, which does not need to be cleaved from food proteins

Injectable B12 for Humans: What You Need to Know When oral supplements just aren't enough, injectable B12 steps in as a highly effective solution

ISBN 978-1-68415-712-9
