I had a diskcectomy 5 wks ago & began the Medifast diet the day after I got home from the hospital. My progress has been a little slower than most people. I was told by their NS( nutrition support ) that having had surgery resently could effect my weight loss but was not given a reason why. I am walking at least 5 days a week and staying on their plan. Does anyone happen to know how a rescent surgery slows down weight loss ?