Hi, I am new to the site and to low carbing but not new to the gym. I took two weeks off to get acclimated to the new diet (Atkins). I returned to the gym this week to discover that after about 30 minutes of strength training group, I was toast. By the end I could barely do anything with my legs. I know this is not about the two weeks off, this was a sad, sad site.

Is this normal? Why is this happening? Does this go away? And if so how long does this weakness last? Any insight is appreciated.