Dry fasting sounds unhealthy depending on the amount of time. I think the consensus is 72 hours for most of the benefits, and drink plenty of water with electrolytes as well. I was feeling really weak after 48 hours so decided to add salt to the water (It acts as a basic electrolyte). The weakness sort of disappeared but then i got nauseous instead and acid reflux. But it could also be because the water i had prepared was contaminated (I used empty coca cola bottles and i could taste sugar when i started drinking from the second one which was about 30 hours in(I was travelling on a ship the whole time and didnt want to use the water that was available or buy some bottled water, i know greedy af, but still) Anyway i will try again near the end of the year by being even better prepared and see if i have better results comfort wise. Sorry about the rant.