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Diet Plan for Kidney Stones

2012-11-07 18:59
If you have kidney stones, it is necessary that you talk with your doctor or dietitian to prevent occurrence of new kidney stones. Several dietary modifications to help prevent further developing stones are discussed in the following passage.

Sufficient Fluid Intake

Increase your fluid intake to the point where your urine volume reaches 2.5 litres a day. This may mean drinking up to 3 litres a day, if you live in a hot, dry climate or if you are involved in strenuous physical activity. Increasing urine volume decreases the concentration of minerals in the urine. This will help to reduce chances of forming stones.

Sodium restrictions

Salt is made up of sodium and chloride. The sodium in salt, when excreted by the kidneys, causes more calcium to be excreted into the urine. High concentrations of calcium in the urine combine with oxalate and phosphorus to form stones. Reducing salt intake is preferred to reducing calcium intake.

Calcium intake

Calcium from food does not increase the risk of calcium oxalate stones. Calcium in the digestive tract binds to oxalate from food and keeps it from entering the blood, and then the urinary tract, where it can form stones. People who form calcium oxalate stones should include 800 mg of calcium in their diet every day, not only for kidney stone prevention but also to maintain bone density.

There are also other dietary suggestions for people who had kidney stones. Supplements containing vitamin C or D may contribute to stone formation. Vitamin C is ascorbate and can be turned into oxalate by the body. Doctors recommend no more than 500 milligrams each day for people who have had kidney stones. Calcium supplements should be taken with meals so the calcium can bind with the oxalate in food.

Other dietary recommendations may depend on the type of kidney stone you are likely to form. A person who has a tendency to form kidney stones should consult a doctor or dietitian before taking large doses of vitamins or minerals.


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