DEAR DOCTOR K: I have high blood pressure and diabetes. I was surprised to learn that they increase my risk of kidney disease. How do they do that?
DEAR READER: Many people know that high blood pressure and diabetes increase the risk of getting heart disease. But less well known is the fact that they are also powerful risk factors for kidney disease. The kidneys filter toxins and wastes from the bloodstream, flushing them out of the body in urine. At the same time, they hold on to important proteins and other useful substances. This process helps control levels of fluid, salt and acid in the body. The kidneys also play an important role in regulating blood pressure.