Dietary Determinants of Renal Calculi: A Case-Control Study From a Tertiary Care Hospital of Western Rajasthan

Introduction Nephrolithiasis affects all countries of the world with an approximate global lifetime prevalence of 15-20%. In India, 12% of the total population is anticipated to have renal stone disease. This study was aimed at providing a relationship between various dietary factors in the formation of renal stones. Methods A case-control study was conducted among 207 patients (106 cases and 101 controls) attending the outpatient and inpatient departments of a tertiary care hospital in Jodhpur, Rajasthan. All the participants with confirmed renal stones by means of ultrasound and radiographic evaluation, aged 15-65 years were included as cases and were matched on age and gender with controls. Pearson chi-square test followed by binary logistic regression was used to assess significant associations. Results Out of all participants, 71.0% were males and 65.7% were from the age group 41-65 years. The study showed a statistically significant association between renal stones and high salt intake, reduced water intake, less consumption of milk and milk products, daily intake of tea, consumption of oxalate-rich foods and consumption of junk foods. Conclusion Dietary factors play an important role in the risk of the development of renal stones. Simple dietary modifications may significantly reduce the chances of the development of nephrolithiasis, especially in the vulnerable population.