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The effects of oral B12 vitamins become visible after a minimum period of 2 to 4 weeks
Water balance is maintained by various regulatory mechanisms
Methods for the analysis of vitamin B 12 in food Several methods have been used to determine the vitamin B 12 content in foods including microbiological assays, chemiluminescence assays, polarographic, spectrophotometric, and high-performance liquid chromatography processes
doi:10.1002/jor.21107
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