Institute of Medicine says, Since 10-30% of older people may malabsorb food-bound B12, it is advisable for those older than 50 to meet their RDA mainly by consuming foods fortified with B12 or a B12-containing supplement (IOM, 1998, p
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doi: 10.1007/s12020-016-1226-9 32 KimBYJangSYChoiDHJungCHMokJOKimCH
, October 2011, Sharma, Shruti et al
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