Presented by: Anna Forbes
University of British Columb ia

Introduction

Dietary interventions can help prevent kidney stone recurrences. Understanding the differences between a population’s baseline diet and the ideal diet for kidney stone prevention can help clinicians and patients focus on dietary interventions with the highest yield. Therefore, the aim of this study was to compare the Canadian population’s diet to dietary recommendations for kidney stone prevention.

Materials

The 2015 Canadian Community Health Survey – Nutrition (CCHS-Nut), a national cross-sectional instrument administered by Statistics Canada and Health Canada was queried. Total daily intake of relevant nutrients were compared to kidney stone recommendations according to Canadian Urological Association patient information materials.

Results

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The CCHS-Nut included data for 14 275 participants, of whom only 34% consume >2L of fluid per day. This varies across Canada, with almost 10% more adults in Western Canada and the Prairies consuming >2L per day compared to Central and Eastern Canada. Only 9.4% of the population had 1000-1200mg of dietary calcium and 53.9% consumed too much sodium. Interestingly, 61% of the population had the recommended protein intake.

Conclusion

In this study, 73% of the population reported inadequate fluid intake. Furthermore, most patients consumed too little calcium and magnesium, but too much sodium. Most of patients had appropriate protein intake. While only a subset of these patients will develop stones, this study suggests that clinicians may wish to focus more of their motivational interviewing time on fluid intake and appropriate calcium/ sodium intake, and less on protein intake.

Funding

None

Lead Authors

Conor Forbes,
University of British Columbia

Co-Authors

Ghizlane Moussaoui,
University of British Columbia