Tree fruits, especially citrus, I would think are very cleansing to the kidneys, because they have no "rock" and being "rock" free, they should help the body dissolve accumulated stones....."IF" you are not drinking or eating stone daily.................otherwise, some herbs are very potent dissolvers and all herbalist will or should alwaystell you that the most beneficial of all herbs, are the ones that aid in dissolving the stones out of the kidneys................in fact, the reason herbal spray I works over a period of time, is in theory, it acts as a kidney stone dissolver and calcium dissolver. Some suggest we humans die when we have 900 times too much rock calcium in our flesh and bones. We know this as OLD AGE / CRIPPLED and bent over in wheel chairs.

MH