11 March 2010
The main job of our kidneys is to remove toxins and excess water from our blood. Kidneys also help to control our blood pressure, to produce red blood cells and to keep our bones healthy.
Roughly the size of fists, kidneys are located deep in the abdomen, beneath the rib cage.

The kidneys are complicated and amazing organs that have numerous biological roles. Their primary role is to maintain the balance of bodily fluids by filtering and secreting metabolites and minerals from the blood and excreting them, along with water, as urine.
The kidneys control blood stream levels of many minerals and molecules including sodium and potassium, and help to control blood acidity.
Read more about The kidneys and how they work
The kidneys are important regulators of blood pressure and the production of red blood cells.
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