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Are Oral Supplements or B12 Injections Better
Treating these issues requires a careful B12 dosing plan
Expert administration: B12 shots are simple, but they are still medical procedures
Observed effects in human trials Reported adverse events across the IV and oral trials included headache, fatigue, dizziness, nasopharyngitis, diarrhea, flatulence, increased appetite, nausea, and back pain
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