I'm finding the same with people I know. They lose it... and then slowly start to treat themselves with booze, fast food, and the "I'll start tomorrow" never comes. You can not continue to eat like a slob on the medication. All it does is slow down your digestion and evacuation, so... you can eat yourself sick.
I ordered a huge piece of chocolate cake last night after eating my grilled salmon salad for dinner. I ate 2 table spoonful's and was done.
The old me was 4 Old fashioneds, wings, nachos, a full meal and a full dessert.