I have gained weight and cannot shift it. I am on Stalevo, Requip and Sinemet CR at night. I have recently developed sciatica. I need to lose weight. I have always been slim, now I am not. I am seriously considering joining Slimming World and was wondering if anyone has managed to lose any weight this way, or would I just be wasting money? I am a slim person in a fat persons body. I exercise regularly. I believe that exercise is the key to fighting Parkinsons. I may have Parkinsons, but it does not have me - yet!!