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Article: Calcium absorption measured by stable calcium isotopes ((42)Ca & (44)Ca) among northern Chinese adolescents with low vitamin D status
- Article from:
- Journal of Orthopaedic Surgery
- Article date:
- June 1, 2002
- Author:
CopyrightCopyright Western Pacific Orthopaedic Association Jun 2002. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
An adequate calcium intake and vitamin-D status is important for bone mineralization in adolescents. In Northern China, calcium intake and plasma vitamin-- D level of adolescents is low due to low consumption of dairy foods and inadequate sunshine exposure. True fractional calcium absorption (TFCA) in Chinese adolescents has never been performed.
This study aims to evaluate nutritional adaptation namely, TFCA and urinary calcium excretion among Chinese adolescents in northern China.
Key words: calcium absorption, calcium intake, 25-- hydroxyvitamin D, puberty, Chinese
INTRODUCTION
In China, calcium intakes of children are low due to their non-dairy based diets. Calcium intakes ...