Drinking water flushes toxins from the body-does it also flush good things out of the body?

Not so much flush good things out but, if you drink too much water at one time it can lead to death. That's what happens with what is called "water intoxication". You may have heard about it recently in the news when a woman trying to win a radio contest related to drinking water drank so much she died. She drank way too much in a very short period of time and her body was not able to absorb it all. But in moderate amounts it will not cause any harm.