Eat food, your method takes alot of will power my brother is doing the same thing and has lost 190lbs in 7 months. Vitamin supplements and fiber (metamucil) No bread, no starches. He drinks upwards of 4L of water a day + a thermos of coffee all day, for supper a small meal ( bbq smoky and some cottage cheese). Occasionaly a diet soda

Its working for him but I dont have the willpower for it, and at some point you have to eat like normal again.

Simple math Calories in = Calories out if the In is higher then out youll gain.