In a previous paper we reported that normal children absorb approximately 10% of iron present in milk, eggs, chicken liver, and iron-supplemented infant cereals. It was observed that children with iron-deficiency anemia absorb food iron more efficiently than do normal children.1 Since iron supplementation of many infants' diets may be desirable, iron balance studies utilizing radioactive isotopes of iron have been continued to include the absorption of iron salts by normal and anemic children. Other investigators2-6 using these techniques have shown that in normal and iron-deficient adults ionic iron is more readily absorbed than is food iron and that iron in the ferrous form is absorbed better than ferric iron.2-6 Similar studies reported to date in children are limited. The work of Darby and his co-workers revealed that children 7 to 10 years of age absorb a greater percentage of a test dose of ferrous iron than
SCHULZ J, SMITH NJ. Quantitative Study of the Absorption of Iron Salts in Infants and Children. AMA Am J Dis Child. 1958;95(2):120–125. doi:10.1001/archpedi.1958.02060050122002
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