No, I only drank water. A lot of water. Even on my regular diet I drink more water than most people, but when fasting, I'm sure I drank 2-3x more water than normal. I would typically have a bottle or glass of water on hand all the time.
Once I did experiment with either lemon water or weak tea (can't recall now) but that caused an unpleasant case of acid reflux, which was very unusual for me.
I would recommend (as a fellow tall guy who was once about 50 lbs. overweight) that after your next fast, when you start eating again, experiment by only eating zero to low carbohydrate foods. Lots of meat and green vegetables. I think you will fine that the fast will kick start ketosis, and the low carb diet will maintain ketosis at a more pleasant level, but the fatty acids in the meat will provide energy, supplemented by the fatty acids being released from your fat cells.
