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by Jack Norris, RD &
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Kidney Stone Treatment

The article, Diet and Kidney Stones, by James J. Kenney, PhD, RD, FACN is an excellent resource for treating kidney stones with diet.

A quick summary is that people with calcium-oxalate stones, the most common type, should avoid high-oxalate foods (listed in the chart in the article), limit sodium to less than 1,500 mg per day, do not take vitamin C supplements, limit animal protein, and only take calcium supplements with meals.

You should also drink plenty of fluid, according to The Mayo Clinic:

Drinking as much as 2 to 3 quarts (1.9 to 2.8 liters) a day may help flush out your urinary system. Unless your doctor tells you otherwise, drink enough fluid – mostly water – to produce clear or nearly clear urine.