This isn't a scientifically correct or established answer - just what I have heard and I naturally assume.
Most of it stays in you and creates body fat.
Well If You Eat Raw ( Uncooked ) Meat What it Will Do That You Will Have Worms And Parasites in Your Body
it hurts
It sleeps.
If your hamburger goes green after a while it means moulds grown on it
The blood goes to all of the body parts.
It gets tired. your body goes to rest.
It goes to the air
It stimulates adrenaline.
It goes into there body and keeps them health.
Nothing it goes through your body.
Your body takes what it needs and then the rest gets exhaled out and goes into the atmosphere.
Grass goes to a Cow. The cow is killed and cooked into a hamburger which, in turn gets consumed by humans.