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While mechanistically interesting, stacking three or more compounds dramatically increases complexity, cost, and potential for unexpected interactions

"High prevalence of folic acid and vitamin B12 deficiencies in infants, children, adolescents and pregnant women in Venezuela"

[DOI] [PMC free article] [PubMed] [Google Scholar] 162.Paldino, E
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Most people do not experience symptoms from high B12 itself
