How long do B12 levels stay elevated after an injection or high-dose supplement
Side Effects Gastrointestinal symptoms: Most common adverse effects were mild-to-moderate nausea, vomiting, and diarrhea, occurring primarily during dose escalation [6] [12]
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Sterile water and bacteriostatic water are very common today in hospitals, research and clinics
However, there is no evidence suggesting that elevated B12 directly causes malignancy or that lowering B12 levels would affect cancer outcomes