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Take 1 capsule twice daily or as directed by your healthcare practitioner
In research settings, it is studied for its role in energy metabolism, nerve repair, and cognitive support
If you drink or have ever drunk large quantities of alcohol
Oral B12 works for many people, but it relies on digestion and absorption in the gut
Nausea (most common, especially during first 1 to 2 weeks of a new dose) Diarrhea or, just as often, constipation Vomiting (less common but more likely at 9 to 12 mg) Reduced appetite, food noise quieting down (this is the goal, not a side effect) Skin sensitivity (dysesthesia): tingling, prickly feeling, or sunburn-like skin
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