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The effect of dietary calcium intake in weanling rats on the efficiency of calcium absorption

Published online by Cambridge University Press:  09 March 2007

Susan J. Fairweather-Tait ,
Amanda Johnson  and
A. J. A. Wright
Susan J. Fairweather-Tait
Affiliation:
AFRC Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA
Amanda Johnson
Affiliation:
AFRC Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA
A. J. A. Wright
Affiliation:
AFRC Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA
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Abstract

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Rats were weaned onto high (HCa, 14.6 g/kg)- or low (LCa, 3.88 g/kg)-Ca diets for 12 d and the efficiency of absorption of Ca measured from 20 mg Ca (as CaCl2, labelled with 47Ca) by means of wholebody counting. The LCa group absorbed 74 % of the test dose and the HCa group 60 % of the test dose (P < 0.001). All animals were then given the LCa diet for 6 weeks and the absorption test repeated. This time there was no difference in efficiency of absorption (HCa 54%, LCa 57%). The femur dry weight was significantly lower in the group initially fed on the LCa diet, but the Ca concentration was similar to that of the HCa group. The results do not lend support to the suggestion that early dietary exposure to Ca manifests itself as a difference in Ca metabolism in later life. They do, however, highlight the importance of adequate Ca intake during critical periods of growth.

Keywords

CalciumAbsorption efficiency
Type
Efficiency of Calcium Absorption
Information
British Journal of Nutrition , Volume 69 , Issue 2 , March 1993 , pp. 527 - 532
Copyright
Copyright © The Nutrition Society 1993

References

REFERENCES

American Institute of Nutrition (1977). Report of the American Institute of Nutrition Ad Hoc Committee on Standards of Nutritional Studies. Jounial of Nutrition 107, 1340–1348.Google Scholar
Ambrecht, H. J., Zenser, T. V., Gross, C. J. & Davis, B. B. (1980). Adaptation to dietary calcium and phosphorus restriction changes with age in the rat. Arnrricun Journal of Physiology 239, E322–E327.Google Scholar
Bronner, F. (1988). Gastrointestinal absorption of calcium. In Culciutn in Human Biology, pp. 91–123 [ Nordin, B. E. C., editor]. London: Springer-Verlag.Google Scholar
El-Maraghi, N. R. H., Platt, B. S. & Stewart, R. J. C. (1965). The effect of the interaction of dietary protein and calcium on the growth and maintenance of the bones of young, adult and aged rats. British Journal of Nutrition 19, 491–507.Google Scholar
Fairweather-Tait, S. J. & Wright, A. J. A. (1985). The effect of the «fibre-filler’ (F-plan diet) on iron, zinc and calcium absorption in rats. British Journal of Nutrition 54, 585–592.Google Scholar
Fehily, A. M. (1989). Dietary determinants of bone mass and fracture risk: a review. Journal of Hurnan Nuwition and Dietetics 2, 299–313.Google Scholar
Goulding, A. (1990). Osteoporosis: why consuming less sodium chloride helps to conserve bone. New Zealand Medical Journal 103, 120–122.Google Scholar
Gregory, J., Foster, K., Tyler, H. & Wise, A. M. (1990). The Dietary and Nutritional Survey of British Adults.London: H.M. Stationery Office.Google Scholar
Marsh, A. G., Sanchez, T. V., Michelson, O., Chaffee, F. L. &Fagal, S. M. (1988). Vegetarian lifestyle and bone mineral density. American Journal of Clinical Nutrition 48, 837–841.CrossRefGoogle ScholarPubMed
Matkovic, V., Fonatan, D., Tominac, C., Goel, P. & Chesnut, C. H. III (1990). Factors that influence peak bone mass formation: a study of calcium balance and the inheritance of bone mass in adolescent females. Anierican Journul of Clinical Nutrition 52, 878–888.Google Scholar
Pansu, D., Bellaton, C. & Bronner, F. (1983). Developmental changes in the mechanisms of duodenal calcium transport in the rat. American Journal of Physiology 240, G20–26.Google Scholar
Prentice, A. (1991). Calcium: the functional significance of trends in consumption. In Modern Lifestyles, Lower Energy Intake and Micronutrient Studies, pp, 147–149 [ Pietrzik, K., editor]. London: Springer-Verlag.Google Scholar
Ueng, T.-H., Golub, E. E. & Bronner, F. (1979). The effect of age and 1,25-dihydroxyvitamin D3 treatment on the intestinal calcium-binding of suckling rats. Archives in Bicichemistry and Biophysics 196, 624–630.Google Scholar
Widdowson, E. M. (1970). Harmony of growth, Lancet i, 901–905.Google Scholar
World Health Organization (1990). Diet, Nutrition, und the Prevenfion of Chronic Diseases. Technical Report Series no. 797, pp. 80–83. Geneva: WHO.Google Scholar