While it is highly beneficial, taking too much can sometimes lead to unwanted side effects
Cases of allergic reactions to hydroxocobalamin with tolerance to cyanocobalamin were documented in several instances (1, 2, 3)
BAC water contains a preservative that prevents bacterial growth, making it essential for vials that will be punctured multiple times over days or weeks
Oral B12 supplements often contain higher levels than the recommended daily allowance (RDA)
Deficiency can lead to fatigue, cognitive impairment, muscle weakness, and other symptoms, making timely diagnosis and treatment critical for overall health
Vegans and vegetarians may require supplementation, as plant-based foods contain negligible B12 unless fortified