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Common effects usually mild and often worst during titration include nausea, vomiting, diarrhea, constipation, abdominal pain, upset stomach, headache, and fatigue
Which testing method was used HPLC, Mass Spectrometry, or both
Heffernan MA, Jiang WJ, Thorburn AW, Ng FM
While there's no one-size-fits-all answer, many health professionals recommend getting B12 injections every few weeks to maintain optimal levels
If you're wondering whether you're getting enough B12 through food, here are the best dietary sources [*]: 1
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