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For most healthy people, drinking water throughout the day is the best way to stay hydrated
This timeline matches B12 pharmacokinetics: intramuscular methylcobalamin reaches peak serum concentration at 8-12 hours, but tissue saturation (particularly in the liver and nervous system) occurs over 48-72 hours as the vitamin is transported into cells and converted to active coenzyme forms (Andrs et al., 2018)
If youre receiving a vitamin B12 injection, your pharmacist may recommend a course of injections for best results
Other causes of B12 deficiency may be helped by increasing the vitamin B12 in your diet
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