Fai mai le National Institutes of Health o i'a, aano o manufasi, moa, fuamoa, susu, ma isi oloa susu e iai le vaitamini B12.E faaopoopo ai pipi ma le ate povi o nisi ia o puna sili o vaitamini B12.Ae ui i lea, e le o mea'ai uma o aano o manufasi.O nisi o saito o le taeao, fefete paleni, ma isi meaʻai ...
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