I did keto a lot before surgery, it was vogue as we’ve all done a million diets in our lives... It works, but cravings. The preop and post diet are similar. Just way more liquids. For the fatigue and headaches, broth was the key. You would dehydrate rapidly and would suffer without the salt. The sugar detox is real, often once it passes you are a ton less Hungery. For those like me, and sugar can start the cravings. 100% agree with others who posted. It takes me about a full week for those to stop. Distractions help, exercise helps, just going to bed helps. I am always less hungry after mild exercise, mostly sweaty and thirsty. It helped stopped the food focus more than plain distractions. Heavy exercise increased the hunger the next day. This might sound crazy, but I had to constantly know when my next meal was. Lunch done, wait 2 hours then sugar free jello, then 1 hour and sugar free popsicle, then start to prep dinner, etc. knowing I was eating something in 1-2 hours helped. I tend to panic eat. Food was scarce as a kid and I tend to stuff myself if it’s not readily at hand and I’m hungry… my next meal is 3 bananas as fast a I can shove them in and I remain food panic triggered and have to talk myself down. I’m working through my hunger panic. I’m 100% not super thin now, I’m huge and need help… it’s why we are all here. :). To give and get support. And trying to not be a clean your plate club, eat any meal you are offered, all meals need a dessert, eat till you have pain and call that “full” kinda gal. I’d also make sure I got all of my sleep. I’m a 10 hour person. Plan a small exercise before you know your mega Hunger hits (I’m lunch). A 15 min walk helps divert my blood to my limbs and gets me craving fluids. Call your food what it is. A popsicle is a dessert. A pudding is a dessert. Sometimes reframing these help, ok in 2 hours I’m having protein pudding as a dessert, followed in 2 hours by a dessert popsicle. We are all different, so need different things. If after dinner I have a popsicle every night before bed, I call it dessert and I always know it’s coming and I will be getting more food… and I’m ok not being as full at dinner. This.. might have been too personal, but… helps me.