The Role of the Nephron in the Body

In 180 liters of filtrate, we filter two kilos of salt a day. But then throw all of that back, basically, to 99% Back into the body. That's crazy. And that's one of the major functions of that nephron. To clean your garage out. You take everything out first, and then you put all the stuff back in that you like. It filters everything, then throws what it needs back into the body - which is pretty much everything.