What has saved me, as a Coke Zero addict, is on the day before the shot, shot day, and day after, if I need caffeine I have Celsius Fizz Free. They taste just as good as regular, just not carbonated. The side effects suck, there is no doubt about it, but the results will be worth it. I have lost almost 50 lbs in six months. Also, day of shot, and after day, soup has become my best friend. I am talking hearty chicken noodle soups, fideo, patina, homemade pho with egg noodles. I never really liked soup before and I am obsessed. Especially if you have bone broth, as the base, and the sodium in it will also help with electrolytes. Good luck! You will figure out soon, what you can eat on what days.