As simple as fasting is, it does create a food void. I think it is normal to start thinking about the next meal. I know I appreciate and savor my fast breaking meals even if I am not very hungry when I eat them.
I will confess to occasionally obsessing about keto recipes and how to perfectly cook my next rib eye or what chaffle recipe to make while fasting. Food prep also crosses my mind and usually I can make something and not be tempted to eat it which speaks to the power of keto. For example, right now I have a bag of garlic from Costco. Most of that that will need roasting…
My fasting time can be hyper-productive and food prep/research is just one of many things that I’ll do while fasting. Other activities include Marie Kondo style organizing, cleaning, trip planning/research, reading, crossword puzzles, list making, journaling, walking, shopping, self care etc.
My wife notices a huge difference in my behaviour while I’m fasting. A good analogy would be the swirl of activity that happens before a vacation. Normally I’m happy to let things slide a little. Before a vacation, I start making lists and really get after things. When I’m fasting, I have that same energy level and focus.
All kinds of projects pop up and I get to dedicate time and focus on them. I’ll also listen to keto podcasts and read these forums for encouragement.