For commercial use please contact [email protected] Introduction Vitamin B12 (B12), or cobalamin, is a cobalt-containing compound, and exists in four forms, methylcobalamin (methyl-B12) and adenosylcobalamin (adenosyl-B12) that naturally occur in the body, and cyanocobalamin (cyano-B12) and hydroxocobalamin (hydroxo-B12) that are synthetic forms used in supplementation and food fortification
Some individuals may experience mild injection-site reactions (e.g., redness, swelling) or occasional headaches
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Claims involving fat loss, obesity, glucose control, liver disease, sarcopenia, metabolism or anti-ageing could contribute to medicinal classification
Route/evidence mismatch: the pivotal mouse study tested subcutaneous injection at a fixed research dose (20 mg/kg, three times daily) the oral capsule use that is actually sold and discussed commercially has not itself been directly tested in that published research
