In connection with a group study of the factors concerned in dental caries we have had under observation in the social hygiene unit of the University Hospital children whose food intakes have been accurately determined over periods of from six to eighteen months. Because of the long periods on a controlled food intake, it seemed to us that the group was a desirable one to use for experiments in mineral balance, since the usual period of adjustment would not be necessary.
We have determined the retention of nitrogen, calcium and phosphorus during thirty-five seven day periods, using as subjects girls from 7 to 11 years of age, chosen from the group previously described by Koehne and Morrell.1 The menus were planned so that the intake of essential constituents of the diet was constant from day to day, and the control ration (diet 1) for the study of metabolism was
HUBBELL RB, KOEHNE M, MORRELL E, PRYTZ B. EFFECT OF VARYING SUGAR INTAKE ON NITROGEN, CALCIUM AND PHOSPHORUS RETENTION OF CHILDREN. Am J Dis Child. 1934;47(5):988–992. doi:10.1001/archpedi.1934.01960120046005
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