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Both methods can improve B12 levels, but professional injections may suit those with specific health concerns
That is double your starting dose, which may trigger significant gastrointestinal side effects including nausea, vomiting, and diarrhea
Glutathione antioxidant effects include glutathione peroxidase-catalyzed reactions with the removal of hydrogen peroxide, organic peroxides, and peroxynitrite
Circulation 2002
However, deficiencies are common, particularly in individuals with: Limited intake of B12-rich foods (vegetarians, vegans)
Cannataro R, Fazio A, La Torre C, Caroleo MC, Cione E
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