24hr first timer- tips?

I’m planning to do a 24-36 hour fast to reset after getting off the bandwagon for the past week and a half (holidays, am I right?).I’ve been doing 16/8 for the past few months, sometimes up to 18/6 but never 24. Any tips for a first time extended fast? Also, tips for coming off the fast would be much appreciated. I’m a little concerned that when I start eating again I’ll get “backed up” from nothing being in my system, but I’m not sure if that even makes sense? TIA! via /r/intermittentfasting https://ift.tt/g87vz5T https://ift.tt/h78oek6