A huge part of the potato diet which isn't mentioned in the article is resistant starch. Each time you cool and cook potatoes you increase the amount of starch

A huge part of the potato diet which isn't mentioned in the article is resistant starch. Each time you cool and cook potatoes you increase the amount of starch your body cannot digest (basically turning into fiber). This makes them even more fulfilling and less caloric (studies show this around 17% each time but I'm sure this approaches a limit). Also it's ridiculously cheap and way easier to cook potatoes in bulk than practically any other food. At least with the Yukon golds I just rinse them, stab them with a knife and drop them into an instant pot with about a cup of water and a trivet. When done I transfer them into a big bowl in the fridge to cool and when I want to reheat them I reheat the whole bowl to accumulate resistant starch. It's not a silver bullet but it's a really useful tool if you haven't been successful with other diets.