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Note that we said average : Many women have shorter and longer cycles that still fall within the range of normal
How to calculate reconstitution
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Importantly, serum B12 levels can be misleadingly normal or even elevated in chronic liver disease due to increased levels of binding proteins (such as haptocorrin) and reduced clearance, meaning that total B12 measurements may not accurately reflect tissue B12 status or functional deficiency
In its research-grade form, it appears as a white lyophilized (freeze-dried) powder
If you have symptoms of deficiency that have never been investigated, see your GP for a blood test before booking any injection
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