Skip to content

Kidney Stones Health Center

Font Size

Understanding Kidney Stones -- Prevention

How Can I Prevent Kidney Stones?

You can do many things to help prevent a recurrence of kidney stones. Knowing the stone's specific mineral composition can help determine which preventive steps are most likely to reduce your risk of getting another kidney stone. Check with your health care provider before making any major changes in your diet, but these general guidelines may help.

  • Drink 2 to 3 quarts of liquid every day. Drinking plenty of fluid is probably the most important way to prevent future stones since this will dilute the mineral concentration in your urine. Ask your health care provider how much fluid is right for you, especially if you have other medical conditions or take any medicines.
  • Limit your intake of oxalate-rich foods such as chocolate, nuts, spinach, beets, and tea. This may be suggested if you have had recurrent kidney stones.
  • Limit vitamin C to less than 2 grams a day. It may convert to oxalate in the body, though it is not known if vitamin C increases the risk of stones.
  • Reduce your salt intake to no more than 2400 mg a day since higher amounts may raise the level of calcium in your urine. Your health care provider may recommend even lower amounts if you have certain medical conditions.
  • Eat a healthy diet rich in fruits and vegetables and low in animal protein.
  • Get to or maintain a healthy weight. Obesity is linked to an increased risk of kidney stones.

Do not restrict calcium unless your health care providers advises you to do so. A moderate amount of calcium in the diet has been shown to be best for most people. Restricting calcium may actually increase the risk of stones in some people.

Recommended Related to Kidney Stones

Understanding Kidney Stones -- Symptoms

Often there are no symptoms of a kidney stone until it starts to move and blocks the flow of urine. When this happens, symptoms may include: Waves of sharp pain in your back and side or lower abdomen. The pain may move toward the groin or testicles. Inability to find a comfortable position. People with kidney stones often pace the floor. Nausea and vomiting with ongoing flank pain Blood in the urine The frequent urge to urinate Sometimes an infection is also present,...

Read the Understanding Kidney Stones -- Symptoms article > >

WebMD Medical Reference

Reviewed by Melinda Ratini, DO, MS on March 31, 2014

Today on WebMD

Kidney Stone
5 Signs You Might Have A Kidney Stone
Lots Of Water Part Of Kidney Stone Treatment
Research To Prevent Kidney Stones Under Way

Thumbnails Kids Get Kidney Stones Too
Food And Drink To Keep Away Kidney Stones
What Is A Kidney Stone Made Of
7 wonders of Water Slideshow