I don't think you'll die since it's not directly inserted into your bloodstream. However, I do expect that you will puke a few times and feel very dehydrated in a moment's notice. You MAY kill a few hundred cells by causing a drastic change in osmotic pressure, and your kidneys, if they could talk, would probably swear at you and kick you for giving them extra work.
I'd test it on lab rats, but I don't have any. My sister does something close to this, but it's with her soup.