Zinc absorption in infants fed iron-fortified weaning food

Fairweather-Tait, S J, Wharf, S G and Fox, T E (1995) Zinc absorption in infants fed iron-fortified weaning food. American Journal of Clinical Nutrition, 62 (4). pp. 785-789. ISSN 0002-9165

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Abstract

The effect of fortification iron (reduced iron) on zinc absorption from a commercial vegetable-based weaning food was assessed in 11 9-mo-old infants. Each infant was fed a test meal of unfortified or iron-fortified product, labeled extrinsically with 1 mg 67Zn or 70Zn (as citrate), and the next day was fed the second product labeled with the other isotope. A complete fecal collection was carried out for 3-4 d, and the amount of unabsorbed isotope measured by thermal-ionization quadrupole mass spectrometry. Apparent zinc absorption (isotope intake minus fecal excretion, expressed as the % of dose administered) was 31.1 +/- 8.3% (x +/- SD) from the iron-fortified food and 28.6%28.6 +/- 10.5% from the unfortified food. These values were not significantly different, thus iron fortification of the weaning food did not reduce zinc absorption.

Item Type: Article
Uncontrolled Keywords: feces,female,food, fortified,humans,infant,infant food,intestinal absorption,iron,male,spectrophotometry, atomic,weaning,zinc,zinc isotopes
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 21 Jul 2014 15:56
Last Modified: 28 Oct 2019 13:54
URI: https://ueaeprints.uea.ac.uk/id/eprint/49215
DOI:

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