What is a general recommendation to prevent kidney stones, irrespective of the stone type?

To prevent kidney stones, a general recommendation is to reduce protein in the diet. High protein intake, particularly from animal sources, can lead to an increase in the excretion of calcium and uric acid in the urine. This elevated level can promote the formation of certain types of stones, notably uric acid stones and calcium oxalate stones. By moderating protein consumption, individuals can help manage their urinary composition and decrease the risk of stone formation.

The other options, while they may have specific contexts related to certain types of stones, do not provide a broad preventive measure applicable to all types of kidney stones. For example, excessive mineral water consumption may contribute to increased mineral levels in the body, which could potentially lead to stone formation. Increasing vitamin C is often linked to the formation of kidney stones in some individuals, as it can be metabolized to oxalate. Decreasing fiber intake is generally not recommended, as a high-fiber diet supports overall health and may even help in reducing stone risk. Overall, moderation in protein intake stands out as a comprehensive strategy for kidney stone prevention across different types.