I had to do the 6 month supervised diet. I have BCBS of AL. They were strict about having to go once a month without skipping any. I messed up on my 3rd month of weighing in and had to start over. Good thing I called my Dr office when I missed instead of waiting until the end of the six months to find out. They told me you have to weigh in with a Dr, not an RN, can be your regular doctor, gynecologist, etc. I chose to weigh in with my gyno, all I had to do was weigh in once a month and he signed my paper the bariatric Dr gave me, with "continue diet and exercise". I actually gained weight and they still approved me. I was told when I started the 6 month diet that I was pretty close to the BMI mark (41 with no comorbid conditions, yet) & I needed to stay about the same weight to get approved.