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For example, someone with severe B12 deficiency and neurological symptoms might need more frequent injections at first
The first would be to purchase the B12 from your doctor and administer to yourself
It helps convert food into usable energy, supports red blood cell production, and plays a key role in nerve function
Medications including metformin, proton pump inhibitors, and H2-receptor antagonists may reduce absorption of B12, potentially prolonging the time to clinical improvement
If you have a known deficiency or medical concern, follow your providers guidance
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