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Alimentary supply of cobalt and characteristics of cobalt balance in healthy young infants



Alimentary supply of cobalt and characteristics of cobalt balance in healthy young infants



Pediatriya, Akusherstvo i Ginekologiya (3): 24-26



Results of analysis of Co contents of 294 samples of infant foods, of 19 types, included the following (mean plus or minus SEM, mu g/100 g fresh product): human milk (8 samples, 0.49 plus or minus 0.04; kefir (5 samples), 1.92 plus or minus 0.22; cows' milk (21 samples), 2.35 plus or minus 0.36; whole-milk kefir with 5% sugar (48 samples), 2.78 plus or minus 0.32; cheese (38 samples), 3.48 plus or minus 0.47; acidophilus-yeast milk (6 samples), 3.10 plus or minus 0.43; 8% semolina milk gruel (5 samples), 3.22 plus or minus 0.63; 10% semolina milk gruel with 1/4 egg yolk (15 samples), 4.41 plus or minus 0.48; 10% buckwheat milk gruel (14 samples), 4.67 plus or minus 0.51. Study of a group of healthy infants (14 at 1-3 months, 16 at 4-6 months, 12 at 7-9 months, and 20 at 10-12 months of age) revealed that breast-fed infants of less than or equal to 3 months of age had Co intakes of 1.38 plus or minus 0.17 mu g/kg body wt., vs. 2.39 plus or minus 0.63 for infants on mixed feeding and 3.82 plus or minus 0.46 for those on artificial feeding. Intake in infants of 3-6 months receiving cows' milk, cultured milk products, milk gruels etc. was 4.09 plus or minus 0.29. Co retention was 69% in breast-fed infants of less than or equal to 3 months of age, falling to 64% on transfer to mixed feeding and 35% on transfer to artificial feeding, then averaging 64-65% at 7-12 months of age.

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