A better question is why would anyone want to?
If you tell people up front that they can’t ever again eat Pizza, or Bread, or Pasta or Spaghetti or Taters, Ice Cream, etc, they will tune everything out. Particularly when the “approved” diet is 3 almonds, a slice of Hickory Sawdust toast, and a Brussel Sprout Smoothie.
I mean, just shoot me now. I can and do eat entire Pizzas once in a while. 2,000 to 2500 calories isn’t going to “break” the calorie bank.
Tonite I made a 2 egg omelet stuffed with Parnells breakfast sausage and melty velveeta, doused in Franks hot sauce. Two thick texas cut chunks of well-done toasted home made french bread slathered in dairy butter. And I might have a homebrew. It ain’t a lot of food, but it’s damn tasty.
One thing about people “watching” what they eat, they get real particular about it, ingredients and prep. (Yeah, I know velveeta ain’t cheese. Sue me!)
When it comes to Velveeta v hard cheeses, SOMETIMES it is the best choice.
Grilled Cheeze, BBQ hamburgers, and on the occasional BLT+Eggs and Onions. BELTO