I actually just did my 2nd ever 48 hour fast too. I only drink one black coffee in the mornings. I had an electrolyte drink midday and again at dinner time. I drank A TON of water. Watched some dr fung YouTube videos for motivation. And honestly, it wasn’t too bad! Hunger comes in waves. I know I just have to drink some more water and it will pass. I have been keto for a few weeks prior so I think that made it easier for me.