Will two days of no food cause muscle loss and/or lower my metabolism?

KittenTamer91

Am having a major surgery soon and have been instructed not to have anything but water 48 hours prior. Not even liquid calories. I regularly exercise, alternating between cardio and weights. What does this mean for my muscle and metabolism?

kommodevaran

It means nothing. You'll feel hungry, that's all.

shadow2soul

You should be fine.

It takes a while for that to happen. 1-2 days shouldn't cause any serious problems.

jgnatca

You won’t be able to keep up your exercise routine in a fasted state. I tried to keep up my walking on the first day of a liquid diet and I nearly fainted.

I suggest you take a holiday from your fitness routine for those 48 hours and baby yourself. They’ll be bugging you enough to get moving after surgery to facilitate healing. Doctor’s orders.

After surgery I counted the days when I could start walking again. It was glorious, and recovery wasn’t that bad.

ccrdragon

Nope - people routinely do 48-72 hour fasts with no lasting ill effects. You will get hungry and you will probably have very low energy but no permanent effects.