This section is from the "Health and Survival in the 21st Century" book, by Ross Horne.
As it is the function of the kidneys to filter out and excrete impurities from the blood, it is not surprising that people on the Western diet, heavily encumbered with toxemia, suffer a great deal of kidney trouble sometimes to the degree of complete kidney failure. Impurities, precipitated out of solution from the blood that the kidneys are unable to cope with, often build up to form stones in the kidneys composed of residues of uric acid and calcium. While conventional medical procedure is to physically remove kidney stones, once the body is freed of toxemia the stones, just like cholesterol build-ups in the arteries, gradually dissolve and disappear of their own accord.
Whereas the main dietary factor eventuating in kidney failure is the overconsumption of protein and condiments, more and more it is becoming evident that kidney failure is also frequently attributable to antibiotics and other medical drugs.