This is a hack--just like all those I mentioned--that really works! It also teaches us about hunger cues, CICO, carb-fear, it is short-term with visible results. It is also "Primal" as heck. You know Grok had to endure food shortages and relied on starchy tubers to get him through a famine. We are tapping into that and losing 5lbs in the process.
You know the Dukan Diet? They do the same thing...after the initial weightloss, anytime they gain 5 lbs they go back into a strict induction. I like to think of the potato diet as a way to keep on track.