It is not good to eat so low, even with weight loss surgery your body needs a minimum amount of Protein to help maintain lean body mass, you don't want to lose muscle.
Are you still pre-op or now post op? It may be useful for you to update your profile so when people respond to your posts that they have sufficient information to respond to.
If you are post-op, how long since your surgery and what food stage of your surgeon's/dietician's post op diet are you at? What about Water or other no calorie fluids, how much are you drinking per day?