Elferink RP et al
Oral B12 supplements are non-invasive and convenient but may have lower absorption rates
doi:10.1007/s10517-011-1332-x
[5] Peptides such as AOD 9604 and retatrutide, when sold with implied therapeutic claims (e.g., fat loss, metabolic enhancement), may legally constitute unlicensed medicinal products, regardless of how they are labelled by suppliers
Toxnet, the database of substance toxicity says, Precautions: Because of lack of long-term safety studies, ALC is not advised for pregnant women or nursing mothers

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