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2022 Jun 1;13:20420188221102800
A randomized, double-blind, placebo-controlled trial in 191 older adults (75 years) with moderate vitamin B 12 deficiency (serum cobalamin concentrations of 107-210 pmol/L) without anemia provided participants with 1 mg/day of cyanocobalamin for one year (94)
Do not use regular tap water or saline
Individuals who have undergone gastric surgery (including bariatric procedures) or ileal resection have permanently reduced absorption capacity
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