If your kidneys are normal, they don't require exceptional care. A healthy, balanced diet and adequate water to slake thirst are enough to keep the kidneys running well. However fad diets, like those extremely high in protein, may harm your kidneys. The ability of kidneys to secrete hormones is vital. The body needs certain hormones to function well.
Awareness about the factors causing the disease helps in keeping it away. If any of the diseases which are responsible for ailment of Kidney as discussed elsewhere is diagnosed, it should immediately and effectively be taken proper care of so that the chances of Kidney infection may be reduced. Besides, another important factor must be borne in mind that frequent consumption of pain killer and sometimes without referring to a physician should be avoided as it has a dangerous side effect of causing renal and kidney failure. Consumption of plenty of water also helps preventing the disease. Requirement of water in the body largely depends upon the structure of the person concerned and also on the nature of his profession.