A comparison of iron absorption in adults and infants consuming identical infant formulas

Fe absorption was estimated in adults and infants from the erythrocyte incorporation of Fe isotopes added to infant formula. Fe absorption was measured in adults using radioisotopes, and in infants with a stable-isotope technique. In adults, the geometric mean Fe absorption from a ready-to-feed soya...

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Bibliographic Details
Published in:British journal of nutrition 1998-01, Vol.79 (1), p.31-36
Main Authors: Hurrell, Richard F., Davidsson, Lena, Reddy, Manju, Kastenmayer, Peter, Cook, James D.
Format: Article
Language:English
Subjects:
Adult
Animals
Ascorbic acid
Ascorbic Acid - metabolism
Biological and medical sciences
Erythrocytes - metabolism
Feeding. Feeding behavior
Female
Ferritins - blood
Formula intake
Fundamental and applied biological sciences. Psychology
Human and Clinical Nutrition
Humans
Infant
Infant Food
Infants
Intestinal Absorption - physiology
Iron
Iron Isotopes
Iron, Dietary - metabolism
Male
Milk
Phytate
Soybean Proteins
Vertebrates: anatomy and physiology, studies on body, several organs or systems
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Summary:Fe absorption was estimated in adults and infants from the erythrocyte incorporation of Fe isotopes added to infant formula. Fe absorption was measured in adults using radioisotopes, and in infants with a stable-isotope technique. In adults, the geometric mean Fe absorption from a ready-to-feed soya formula with its native phytic acid content was 2·4%. This increased to 6·0% (P < 0·05) after almost complete dephytinization. In infants, mean Fe absorption values were 3·9 and 8·7% respectively from the same products (P
ISSN:0007-1145
1475-2662
DOI:10.1079/BJN19980006