what i noticed was provided i did resistance training every single day during that fast so i dramatically changed my training because i would normally be alternating between cardio and resistance but if on those fasting days the only thing i did was resistance training and specifically i focused on the biggest lifts possible so deadlift is my favorite lift so i would even deadlift every other day and mostly just focus on the biggest muscles um i had to go a lot slower so i had to take i needed much more rest between sets but i could actually still move the exact same amount of weight so i didn't get any weaker it seemed to minimize the loss of lean mass certainly muscle i shouldn't say that i lost water weight but i did not appear to lose muscle mass