A new study published in The Lancet has raised questions about the long-held belief that drinking more water can prevent kidney stones. The research involved over 1,600 participants with a history of kidney stones who were encouraged to increase their fluid intake. Surprisingly, the study found no significant reduction in the recurrence of kidney stones among those who drank more fluids. Experts suggest that simply increasing water intake does not guarantee adequate hydration or effective prevention, as many participants did not reach the recommended urine output of at least 2.5 liters daily.

The study emphasizes the importance of a comprehensive approach to kidney health, which includes dietary adjustments and medical treatments. Key dietary strategies include reducing sodium intake, maintaining adequate calcium levels, limiting animal protein, and avoiding high-oxalate foods. For those with recurrent kidney stones, medications such as potassium citrate and thiazide diuretics may be necessary. Ultimately, while hydration is important, it should be part of a broader strategy that focuses on urine output, diet, and overall health to effectively prevent kidney stones.