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They have been extensively studied in large-scale human clinical trials, with robust safety data spanning over a decade
It plays many important roles in your body
In contrast, cyanocobalamin, a synthetic form of B12, must be converted into Methylcobalamin or adenosylcobalamin in the body before it can be used
Summary: The correct dosage of B12 for healthy UK adults is 1.5 micrograms daily for maintenance, whilst treatment of deficiency requires substantially higher doses of 1,0002,000 g orally or 1 mg intramuscular injections
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