title: Protein and fat utilization by humans as affected by calcium phosphate, calcium carbonate, and manganese gluconate supplements.
abstract: The object of this study was to determine the effect of calcium carbonate or calcium phosphate supplements on dietary protein and fat utilization from low and high manganese diets. During the 63-day study, the 14 human adult subjects ate a constant laboratory controlled diet. In separate periods, subjects consumed the basal diet alone or with supplements of calcium carbonate, calcium carbonate plus manganese gluconate, calcium phosphate, or calcium phosphate plus manganese gluconate. Contrast analyses of data indicated that manganese gluconate supplementation of diets, when combined with either calcium phosphate or calcium carbonate, increased fecal losses of fat. When used as single supplements, both calcium phosphate and calcium carbonate depressed fecal fat loss in comparison with values when no supplements were used. Manganese gluconate supplements depressed fecal nitrogen losses calculated as a percentage of dry fecal weight.
authors: Department of Human Nutrition and Food Service Management, University of Nebraska, Lincoln 68583-0807.
authors: S M
authors: SM
authors: Potter
authors: C V
authors: CV
authors: Kies
authors: A
authors: A
authors: Rojhani
mesh_terms: D000328:Adult; D002118:Calcium / Q000494:pharmacology*; D002119:Calcium Carbonate / Q000008:administration & dosage / Q000494:pharmacology; D002130:Calcium Phosphates / Q000008:administration & dosage / Q000494:pharmacology; D004041:Dietary Fats / Q000378:metabolism*; D004044:Dietary Proteins / Q000378:metabolism*; D005260:Female; D005942:Gluconates / Q000008:administration & dosage / Q000494:pharmacology; D006801:Humans; D007408:Intestinal Absorption / Q000187:drug effects; D008297:Male
chemical_list: D002130:Calcium Phosphates; D004041:Dietary Fats; D004044:Dietary Proteins; D005942:Gluconates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; D002119:Calcium Carbonate; C485829:calcium phosphate, dibasic, anhydrous; C030691:gluconic acid; D002118:Calcium