Calcium for Kidney Stones


A higher intake of calcium — contrary to conventional wisdom — prevents kidney stones, according to a study published in the April 26, 2004 edition of the Archives of Internal Medicine.

Despite studies suggesting calcium's benefits, physicians routinely recommend low-calcium diets for people with kidney stones based on intuitive thinking: Since the stones are mostly calcium, less dietary calcium would reduce the chance of kidney deposits.

The latest study found a highly significant--27 percent--reduction in stones in women consuming the most calcium from food. In addition, phytate — a chemical in fiber that binds minerals — showed a stronger protective effect, reducing stone formation by 37 percent.

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