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Some of the common risk factors, for kidney stones, include: dehydration, a high salt diet; surprisingly, not enough calcium in your diet could cause kidney stones. One of the most common misconceptions is that because most kidney stones are calcium that dietary calcium supplements are a risk factor for kidney stones. And, that's actually contrary to the evidence. Prevention of kidney stones follows two guidelines. One is to dilute the urine with as much fluid as possible, and the other is to remove the constituents that form the kidney stones. One of the biggest risk factors for elevated urine calcium levels is not, in fact, dietary calcium, but is dietary sodium. Often patients will Google kidney stone diets, and it's very dogmatic about avoiding oxalates. However, one of the strategies that may be easier to follow would be to increase your dietary calcium.