Hi @Lori - interesting re the potatoes. Sometimes some fast days are much more difficult than others, and I feel more hungry. Over time, (I 've been fasting 18 months now) I've noticed that this is usually after I've eaten more carbs than usual in previous days. I don't exclude foods as I've always felt that this WoE was not about exclusion, but management. And I like potatoes, cake, chocolate etc etc (see my signature

) ... However this has meant that I do now eat less of them than previously, and this has led to less of those very hungry fast days.
This has just been proved again over the last week. I didn't fast, as I was looking after two ill parents, and there simply was not the opportunity to either fast, or control my food intake as much as I would have liked. I ate far more carby foods than usual. And this week's fast? Successful, but I definitely felt more peckish

than usual. All this is anecdotal but there is a lot about this on the forum, and people like @carorees can explain the science.
However, we'll all be interested to hear how you get on with the potato hack, both on the fast day, not to mention the following days, so do let us know!