I feared this same thing presurgery and sometimes wonder if I will stop one day and gain back more than I weighed post surgery. I can say this I am like so determined not to do just that. I had to wait for 5yrs to save money for my surgery because insurance wouldn't even think about it. Every time in my past I have lost and gained back what I lost and more. This time will be different. I am sure I will stumble at times but will not let myself get out of control of the situation. This tool is wonderful!