I was under the impression that in addition to the amount of lemonaid you drink, you should be drinking 1/2 the amount of your body weight in water. (ie) 130lbs. then 75 oz in water. I have felt really thirsty since I started - day 4 today. I have been drinking about 50 oz of lemonaid, about 70 oz. water/herbal tea combos. I drank more water yesterday - about 100 oz - and today is the first day I woke up without a headache. Not sure if it is this or not. I also slept about 11 hours.