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Cognitive Benefits: Evidence suggests that vitamin B12 injections can enhance memory, attention, and processing speed, especially in individuals with cognitive impairment due to deficiency

[DOI] [PMC free article] [PubMed] [Google Scholar] 21.Bilic M., Bumber Z., Blagaic A.B., Batelja L., Seiwerth S., Sikiric P

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Food-cobalamin (vitamin B 12 ) malabsorption, first described by Carmel in 1995,30 is the most common cause of vitamin B 12 deficiency in the elderly and accounts for about 40% to 70% of cases.26 29 31 It is characterised by the inability to release vitamin B 12 from food or from its binding protein and thus, preventing vitamin B 12 from being taken up by intrinsic factor for absorption