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Dietary Assessment of Patients Who Form Kidney Stones


Authors: K. L. Penniston
Authors‘ workplace: Department of Urology University of Wisconsin
Published in: Urol List 2015; 13(2): 5-10

Overview

Highlights:
1. Assessment of a patient’s habitual dietary pattern or intake of specific foods and beverages is important in identifying whether diet is contributory to his/her stone formation risk. 2. Dietary assessment is a skill practiced by dietitians; non-dietitians who assess their patients’ diets should be aware of and avoid common pitfalls to obtaining accurate information. 3. The 24-hour urine analysis and the stone composition report are not surrogates for dietary assessment as food-derived compounds that may appear in urine or renal calculi are subject to multiple metabolic processes after ingestion and during circulation. 4. A dietary recommendation should be applied directly to the alleged dietary contributor to stone risk. 5. If diet is not contributing stone formation, or if a patient is already eating according to a dietary recommendation aimed at controlling a specific stone risk factor, then no amount of recommending dietary change will elicit improvement in his/her stone risk. 6. Providing dietary recommendations that are not linked to stone risk factors may (a.) overwhelm the patient with multiple, unnecessary recommendations, (b.) mislead him/her about which recommendation(s) have priority, and/or (c.) provide false hope about the potential for success of nutrition therapy.

Key words:
urolithiasis, nephrolithiasis, kidney stones, diet, nutrition, dietary assessment, dietary recommendations, nutrition therapy, medical nutrition therapy


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