PMID: 9550458Apr 29, 1998Paper

Calciuric effects of short-term dietary loading of protein, sodium chloride and potassium citrate in prepubescent girls

Journal of the American College of Nutrition
T L Duff, Susan Joyce Whiting

Abstract

Studies using adult human subjects indicate that dietary protein and sodium chloride have negative effects on the retention of calcium by increasing urinary calcium excretion, while alkaline potassium improves calcium retention along with decreasing urinary calcium losses. This study investigated the effect of these dietary factors on acute urinary calcium excretion in 14 prepubescent girls age 6.7 to 10.0 years. Subjects provided a fasting urine sample then consumed a meal containing one of five treatments: moderate protein (MP) providing 11.8 g protein, moderate protein plus 26 mmol sodium chloride (MP+Na), high protein (HP) providing 28.8 g protein, high protein plus 26 mmol sodium chloride (HP+Na), or high protein plus 32 mmol potassium as tripotassium citrate (HP+K). Urine was collected at 1.5 and 3.0 hours after the meal. Supplemental protein was given as 80:20 casein:lactalbumin. Test meals were isocaloric, and unless intentionally altered, components of interest except phosphate were equal between treatments. Each subject completed all five treatments. Urinary calcium excretion rose after the meal, peaking at 1.5 hours. There were no significant differences in calcium excretion between treatments at any time point. The ...Continue Reading

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Citations

Apr 29, 1998·Journal of the American College of Nutrition·A Maggioni
Nov 16, 2005·Medicine and Science in Sports and Exercise·Darryl G ThelenBryan C Heiderscheit
Jan 6, 2005·Medicine and Science in Sports and Exercise·Darryl G ThelenBryan C Heiderscheit
Mar 17, 2004·The Proceedings of the Nutrition Society·Susan A New
Mar 4, 2006·The British Journal of Nutrition·Maurice J Arnaud
Jul 22, 2017·Nutrition & Dietetics : the Journal of the Dietitians Association of Australia·Benjamin H ParmenterLynda A Frassetto
Mar 29, 2001·The American Journal of Clinical Nutrition·G JonesS Whiting
Aug 26, 2021·World Journal of Nephrology·Maria Goretti Moreira Guimarães Penido, Marcelo de Sousa Tavares

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