I think most "experts" recommend cardio everyday. At least I always hear to get 30 minutes a day, which I interpret as everyday. I do think they recommend not to run or jog everyday, though, as that will put stress on your joints, especially us heavier girls.
This is an example of a "good" week for me:
Monday, Wednesday, Friday: Jog/Walk 45 min (including c25k...or my own jog/walk routine that's similar)
Tuesday, Thursday, Saturday: 30 minutes cardio (usually elliptical), 15 minutes strength training
Edit: I was going to say, you're probably fine with doing a bit of extra cardio on C25K days, but if you feel it's too much, maybe to incorporate strength & cardio together on your off days for c25k.
Last edited by LiLi Gettin Thin; 05-14-2008 at 12:36 PM.