Why are the kidneys important?
The kidneys are an indispensable organ – they act as a filter and support blood formation. They also concentrate urine and support hydration of the body and reabsorption of water and ions, which help maintain stable internal conditions (homeostasis). They also create the hormone erythropoietin, which supports the formation of red blood cells.
Kidneys eliminate harmful substances and metabolic wastes from the body. They also contribute to the activation of Vitamin D.
