I am 49 years old and I have been struggling with my weight for many many years. I lost over 60 pounds in 2002 and I kept it off for 4 years before gaining it all back and then some. I recently found out that I need a total knee replacement due to severe arthritis. I would like to lose 90 pounds before i decide to have the surgery. I weighed 322 lbs. May 25th 2014 I now weigh 291. My goal is 200.