I'm on week #6 and really liking the Medifast program. Although I've been exercising for 2 years, I scaled back the intensity since I started MF. I just upped my intensity and added back running and feel great! Anyone on MF care to share their experience? DH and I signed up for the W&D 1/2 marathon which will be my first. I did the ToT 10-miler last year and plan on being much faster this time around (and enjoying the after-party in Epcot more than the party in DHS). Anyway, if you ran while doing MF, I'd love to hear your experience too! Thanks!