The GI diet is similar to what ww is I have heard, in that they encourage you to eat brown rice etc. I lost 2 stone on GI, I maintained a long time too before I started putting it on. They tell you what your red, yellow and green foods are. Greens are free, eat what you like (so that's all the zero points stuff) yellow is the things you are allowed in moderation and a certain portion size of (so 40g pasta etc) and red is just no go! Like chocolate bars, peanut butter. It's simple to follow x