Drink

My Dr. Says 64 oz about 8 glasses use fruit tea. No cal and tasty

I was told that it depends on your body weight. The formula I use is to take your body wright divide that in half as ounces and that's how much you should drink a day. I weigh 218lbs so divided in half is 109 ounces a day. The 8-10 8oz glasses is based on an avg weight of 160lbs. Hope that helps.