Premium
CALCIUM AND MAGNESIUM NUTRITIONAL STATUS OF ADOLESCENT HUMANS FED CELLULOSE OR HEMICELLULOSE SUPPLEMENTS
Author(s) -
McHALE M.,
KIES C.,
FOX H. M.
Publication year - 1979
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1979.tb06450.x
Subject(s) - hemicellulose , urine , cellulose , magnesium , calcium , zoology , excretion , basal (medicine) , chemistry , fiber , food science , physiology , medicine , biochemistry , biology , organic chemistry , insulin
The object of the study was to determine the effect of graded levels of two types of dietary. fiber on calcium and magnesium utilization by adolescent boys and girls. The 21‐day study was divided into a l‐day introductory nitrogen depletion period, a 2‐day adjustment period and three 6‐day randomly arranged experimental periods. During the three experimental periods, the eleven adolescent boys and girls and one young adult woman received a basal diet plus 10g or 20g of cellulose or 10 or 20g of hemicellulose supplements. The subjects were divided into two groups of six subjects each. Calcium and magnesium contents of food, feces, urine and blood serum were measured by atomic absorption spectrophotometry. Statistically significant changes in urinary mineral loss and increases in serum values were demonstrated. While receiving the basal diet alone or plus log cellulose, 20g cellulose, or no fiber, log hemicellulose or 20g hemicellulose, mean urinary calcium excretions (mg/subject/day) were 75.14, 83.14, 76.33, 70.48, 66.64 and 87.58, respectively. During the pre‐study and while receiving the basal diet alone, 10g cellulose, 20g cellulose or during the pre‐study, no fiber, 10g hemicellulose and 20g hemicellulose supplement, mean magnesium serum values (mcg/subject/dl) were 2.045, 1.938, 1.906, 1.940, 1.995, 1.976, 1.879 and 1.922, respectively.