I'm really stressed out right now, this is my fourth day of fasting, I'll be going to the gym today but I'm just so insanely worried about losing my hard earned muscle because there is no way I can eat enough calories. Does anyone have a solution for this? People say there's a thing such as muscle memory, not sure if I should believe that. Anyways, I'll be doing this fast for 1 month for religious reasons, does anyone know a way I can maintain my muscle? You can tell me to just eat all my calories when I can eat at night, but there is no way I can take in 2500 calories of food in a few hours, so what can I do to at least maintain my muscle for the next month? Also, if I worked out but followed a half assed eating plan for the next month, will I maintain my muscle?