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Grapefruit Juice & Kidney Stones

author image Jonae Fredericks
Jonae Fredericks started writing in 2007. She also has a background as a licensed cosmetologist and certified skin-care specialist. Jonae Fredericks is a certified paraeducator, presently working in the public education system.
Grapefruit Juice & Kidney Stones
Avoid grapefruit juice if you are prone to kidney stones. Photo Credit: HandmadePictures/iStock/Getty Images

Abdominal pain, nausea, vomiting, fever and chills are just a few of the symptoms associated with kidney stones. If you have ever received a kidney stones diagnosis, you are among the 10 percent of Americans who have had to deal with this painful condition. Orthophosphate medications can reduce your chances of having another kidney stone attack -- avoiding grapefruit juice may also help.

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What are Kidney Stones?

Several types of kidney stones occur when you have too much calcium, uric acid, oxalate or other mineral substances in your urinary tract. The excess substances combine and form hard, crystalline deposits that block urine flow inside your kidneys. The blockages produce kidney swelling and extreme pain that intensifies as the condition persists. According to PubMed Health, calcium stones are the most common type of kidney stones, usually occurring in men and women between the ages of 20 and 30.

Citric Acid

Citric acid, a bitter acid contained in fruits, reduces the development of kidney stones in some patients. In fact, the North Carolina University Cooperative Extension explains that increasing your intake of orange juice and lemon juice, which contains ample amounts of citric acid, can help prevent kidney stones from developing in the urine. Despite the fact that grapefruit juice contains citric acid, regular consumption may actually increase your risks of developing kidney stones. The reasons why are unclear.


The research as to why grapefruit juice increases the risk of kidney stones is inconclusive. However, researchers do know that people who consumed 8 oz. of grapefruit juice every day increased their chances of developing kidney stones by 44 percent during a period of eight years, according to a study published in the December 2005 issue of “Urologic Nursing.” The jury is still out on whether or not grapefruit juice is a direct cause of kidney stones or whether ingesting grapefruit juice produces a chain reaction of effects that results in the development of kidney stones.


When it comes to reducing your chances of developing kidney stones, grapefruit juice may be out, but water is in. The University of Illinois at Urbana-Champaign reveals that if kidney stones are a common occurrence, drinking six to eight glasses of water every day may increase your urine output enough to discourage crystalline deposits from developing. Increasing your daily water intake will also dilute your urine, making it difficult for kidney stones to form.

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