Document Detail

Conflicting dietary advice for adhering to low-sodium and low-phosphorus diets.
MedLine Citation:
PMID:  17046617     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To elucidate conflicts that patients face when advised to limit multiple nutrients in their diet. DESIGN: We analyzed the phosphorus content of low-sodium foods compared with their regular-sodium content counterparts, and the sodium content of low-phosphorus foods compared with foods containing higher levels of phosphorus. Low-sodium and low-phosphorus foods were identified with the use of recommendations from National Kidney Foundation patient information Web sites. Content of sodium and phosphorus was quantified with use of the US Department of Agriculture (USDA) Nutrient Database. SETTING: Review and analysis of publicly available patient information Web sites and nutrient databases. MAIN OUTCOME MEASURE: Phosphorus content of low- versus regular-sodium-containing foods, and sodium content of low- versus high-phosphorus-containing foods. RESULTS: Of 47 low-sodium foods, 32 had identical phosphorus content--8 higher and 7 lower--compared with regular-sodium alternatives. Of 9 foods recommended as low-phosphorus alternatives to high-phosphorus choices, 4 had higher sodium content and 5 had lower, with considerable variability. However, choosing servings of 4 low-sodium alternatives could increase ingestion of phosphorus by up to 16% of recommended intake, and choosing servings of 4 low-phosphorus alternatives could increase ingestion of sodium by more than 20% of recommended intake. CONCLUSION: Adhering to a complex renal diet is extremely difficult for patients with chronic kidney disease. Balancing sodium and phosphorus restrictions is particularly challenging, especially as food choices low in one nutrient may not be low in the other. To help patients follow these diets, alternative methods of achieving dietary restrictions of multiple, often conflicting, components may be needed.
Jonathan B Jaffery; Virginia L Hood
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation     Volume:  16     ISSN:  1532-8503     ISO Abbreviation:  J Ren Nutr     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-10-18     Completed Date:  2007-02-09     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  9112938     Medline TA:  J Ren Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  332-6     Citation Subset:  IM    
University of Wisconsin Medical School, Madison, Wisconsin 53713, USA.
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MeSH Terms
Chronic Disease
Diet, Sodium-Restricted / standards*
Food Analysis*
Kidney Diseases / diet therapy*
Patient Compliance
Phosphorus, Dietary / administration & dosage*,  analysis*
Sodium, Dietary / analysis*
Grant Support
5K12RR017614-03/RR/NCRR NIH HHS
Reg. No./Substance:
0/Phosphorus, Dietary; 0/Sodium, Dietary

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