Abstract
ABSTRACT: Absorption of dietary calcium was evaluated with the extrinsic tag approach and stable isotope methodology in growing premature infants. Fractional absorption of a bolus dose of 46Ca was determined on 16 occasions in 13 premature infants (birth weight 1135 ± 40 g, gestational age 29.5 ± 0.4 wk, mean ± SE) and was found to be 84.4 ± 2.2%. Fractional absorption of 46Ca ranged between 65 and 97%, and did not appear to be influenced by postnatal age, postconceptual age, body weight, or intake of preterm human milk, fortified preterm human milk, or premature formula. Therefore, if absorption of the 46Ca dose reflects that of dietary calcium, about 80% of dietary calcium is absorbed.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ehrenkranz, R., Ackerman, B., Nelli, C. et al. Absorption of Calcium in Premature Infants as Measured With a Stable Isotope 46Ca Extrinsic Tag. Pediatr Res 19, 178–184 (1985). https://doi.org/10.1203/00006450-198502000-00006
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1203/00006450-198502000-00006
This article is cited by
-
Scientifically-based strategies for nutrition of the high-risk low birth weight infant
European Journal of Pediatrics (1990)
-
An improved multi-element measurement of mineral absorption in the piglet utilizing the fecal monitoring technique
Biological Trace Element Research (1988)