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B12 Deficiency Symptoms and Risk Factors B12 deficiency is more common than most people realise and is frequently missed or misattributed to other causes
Brunel-Guitton, C., Costa, T., Mitchell, G
S.KumarN.DelheyL.BerkM.DeanO.SpielholzC.et al (2015)
However, additional studies would be necessary to validate these conclusions
It is listed as a recombinant analog rather than a synthetic short chain, in the IGF & Insulin-Class Peptides category
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