Kidney stones are mineral deposits that crystallize within the kidneys. They occur in nearly 15% of individuals, with a 50% recurrence rate. Though generally treatable and temporary, they are often painful. The stones typically form when the urine contains excess uric acid, calcium, and oxalates, minerals that can form crystals. In some cases, even if the mineral content in urine is not too high, the fluid lacks in substances that prevent crystallization. Since the composition of urine is largely dependent upon diet, abstaining from certain foods can lower the risk of kidney stones.


1. Oxalate-Rich Foods

Since oxalates form a large percentage of kidney stone make-up, consuming oxalate-rich foods is likely to trigger stone formation in people with a history of kidney stones. Some ingredients to avoid or limit include

  • Rhubarb
  • Swiss chard
  • Soy
  • Chocolate
  • Spinach
  • Sweet potatoes

Those who have already experienced kidney stones may want to completely cut these foods from their diets, and people with a family history should also limit or remove foods high in oxalates.



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