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Additionally, chronic conditions such as HIV and tuberculosis have been implicated in B12 deficiency due to increased metabolic demand and altered absorption mechanisms ( The diagnosis of vitamin B12 deficiency typically relies on low total B12 levels and elevated concentrations of homocysteine (Hcy), as well as levels of transcobalamin-bound B12 (holoTC) and methylmalonic acid (MMA), which serve as functional indicators of cobalamin insufficiency ( Vitamin B12 requirements fluctuate throughout the life course, influenced by metabolic demand and physiological changes
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Holds 1 mL, and each mark is 0.01 mL
Blood levels remain relatively stable throughout the week even with once-weekly dosing
The average r factor for females is 0.66 , compared to 0.73 for males
By slowing gastric emptying, it reduces the time stomach acid has to work on B12-protein bonds
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