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Anything else is marketing until proven otherwise Higher doses can cause GI issues for some people
Safety studies have evaluated single doses up to 0.4 grams per kilogram of body weight (approximately 28 grams for a 70-kilogram adult) without serious adverse effects, though gastrointestinal symptoms represent the primary tolerability concern
doi: 10.1016/j.arres.2021.100015 240 SariolA.PerlmanS
In laboratory and experimental research, B12 administration is used to investigate its influence on red blood cell formation, neurological models, metabolic regulation, and homocysteine metabolism
Lin Y-H, Chen Y-H, Chang H-Y, Au H-K, Tzeng C-R, Huang Y-H
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