Kidney stones are mineral deposits that crystallize within the kidney and though may not cause any permanent damage, tend to be rather painful in most cases. Stone formation typically takes place due to excess amount of crystal-forming substances such as uric acid, calcium and oxalates being present in the urine. In some cases, even if the mineral content in urine is not too high, the urinal fluid may be lacking in those substances that prevent crystallization. Since the composition of one’s urine is largely dependent upon their diet, avoiding certain foods can lower the risk of kidney stones. Here are some common foods that are known to cause stones and thus, need be consumed sparingly by those prone to this condition.

1. Oxalate-Rich Foods

Since oxalates form a large percentage of kidney stones’ compositional value, consuming oxalate-rich foods is likely to trigger stone formation in vulnerable individuals. Thus, preparations containing high quantities of rhubarb, spinach, sweet potatoes, caffeine, chocolate, Swiss chard and soy should be avoided. Those who have already suffered from kidney stones and have a proclivity to stone formation should stay away from these ingredients completely. Those who have a family history of kidney stones and/or have been diagnosed as having weak kidney function may consume these foods occasionally, though the quantity should be kept in check.