Welcome, Natch

It's quite safe to workout while doing LC; however it is advisable that you wait a few weeks until your body is accustomed to burning a different type of fuel; specially if you're just beginning an exercise program. I found it took me a good 2 weeks to get back on track at the same intensity I was working out at prior to LC. Ease yourself into it and remember to drink plenty of water and take a potassium supplement .

Nat