Kidney or other stones within the body are formed by perverse or metamorphosed secretions and excretions, brought about by a faulty diet: it really is that simple.
Adhere to a wholefood diet with plenty of fresh fruits, vegetables, legumes, pulses, nuts and wholegrains, with the addition of unadulterated meats if desired, and then eat only when hungry.
Stones are also known to be dissolved via water-only-fasting, if carried through for a sufficient length of time.