I had to do a two-year program. I saw my doctor approximately every two months, counted calories, and walked 5 miles almost every single day. I didn't do anything differently---I ate healthy, but on many of the days I ate way too much. During some visits, I lost weight, yet I gained on others. My weight never stayed the same, but the experience was a true snapshot of how my weight has yo-yoed most of my life. At my final visit, I had lost 14+ pounds in the two-month time period and was concerned I wouldn't be approved. However, my insurance company received my paperwork on February 15, and the approval letter was dated February 17. The two years actually passed by much more quickly than I thought they would.