Hello,

The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body.

• This is how water and substances like urea, uric acid, salts and amino acids are removed from the blood. Every day, all of the blood in your body (between five and six liters) passes through the kidneys about 300 times.
• So your kidneys filter about 1,700 liters of blood per day in total. This leads to the daily production of about 170 liters of primary urine (glomerular filtrate) – which later becomes urine.

Hope this helps!!!!