DASH diet may lower risk of recurrent kidney stones

HealthDay The Dietary Approaches to Stop Hypertension click here DASH diet might be an effective alternative to the low-oxalate diet for reducing risk of kidney stone recurrence, according to research published in the March issue of the American Journal of Kidney Diseases.

Nazanin Noori, M.D., Ph.D., of the Shahid Beheshti University of Medical Sciences in Tehran, Iran, and colleagues randomly assigned recurrent kidney stone formers to follow the DASH diet 29 participants or a low-oxalate diet 28 participants. At eight weeks, the researchers assessed changes in urinary calcium oxalate supersaturation and 24-hour urinary composition.

Among the 41 participants who completed the trial DASH group, 21; low-oxalate group, 20, the researchers observed a trend for increase in urinary oxalate excretion for the DASH group versus the low-oxalate group point estimate of difference, 9.0 mg/d; 95 percent confidence interval [CI], 1.1 to 19.1 mg/d; P = 0.08. However, in the DASH group, compared with the low-oxalate group, a trend for calcium oxalate supersaturation to decrease was observed point estimate of difference, 1.24; 95 percent CI, 2.80 to 0.32; P = 0.08 in association with an increase in magnesium and citrate excretion and urine pH.