The diet and fast food industry are in crisis mode because of this lo-carb shit. You should see them in round table discussions at various trade shows. It's like WWIII for them! McDonald's is actually seeing profits FALL for the first time in decades!
Diets make billions from pills, "programs", magazines, instructional videos, etc. They want you to be fat, and be a "loser" at diet programs, so they keep making more money. A simple "keep carbs at zero" is making them lose shitloads of monye. FF places lose money for obfious reasons.
Don't expect them to go down w/o a fight. They're gonna try to keep enticing people back with even YUMMIER food. Keep reminding the now fit people what they're missing. Make foods even more high in fructose and corn syrup and sugars and chemically designed to gain maximum bloatness when you eat it.
This is gonna get ugly...