A healthy diet helps prevent kidney stones, says a new study. The study, appearing in the Journal of the American Society Nephrology (JASN), claims that loading up on fruits, vegetables, nuts, low-fat dairy products, and whole grains, while limiting salt, red and processed meats, and sweetened beverages is an effective way to ward off kidney stones.
To reach the conclusion, Eric Taylor, MD (Maine Medical Center) and his colleagues at Brigham and Women’s Hospital conducted a large study. They collected information from individuals enrolled in three clinical studies. Dr. Taylor’s team assigned a score to each participant based on eight components of a DASH (Dietary Approaches to Stop Hypertension) style diet: high intake of fruits, vegetables, nuts and legumes, low-fat dairy products, and whole grains and low intake of salt, sweetened beverages, and red and processed meats. Individuals with higher DASH scores consumed diets that were higher in calcium, potassium, magnesium, oxalate, and vitamin C and lower in sodium.
A total of 5,645 incident kidney stones developed in the participants in the three studies. In each, participants with the highest DASH scores were between 40 per cent and 45 per cent less likely to develop kidney stones than participants with the lowest DASH scores. The reductions in stone risk were independent of age, body size, fluid intake, and other factors. Because a DASH style diet may affect the development of hypertension, diabetes, and other chronic diseases associated with kidney stones, the researchers also performed an analysis limited to study participants without hypertension or diabetes. Even among those individuals the DASH diet reduced the risk of kidney stones.
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