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Medications- Certain medications, such as proton pump inhibitors and metformin, can interfere with B12 absorption, leading to deficiency over time
The effectiveness duration of vitamin B12 depends on multiple elements, as per your inquiries about its operational period
Whereas aging cannot be reversed, a vitamin deficiency can
B12 is a water-soluble vitamin, so your body absorbs what you need, and any excess passes through your urine
High-dose oral supplements (often 10002000 micrograms daily) or intramuscular injections (typically 1mg hydroxocobalamin) used to treat pernicious anaemia or deficiency states can temporarily elevate serum levels
However, if you are deficient in B12, then supplementation may help improve symptoms like weakness and fatigue
