One of my co-workers is doing the lean for life program. From what I understand, it's both a low carb AND a low fat program. She hasn't been doing it for too long, so I can't speak for how effective it is. It seems to me, though, that with the low fat, you would run into the problem of being hungry again and have a hard time sticking with it. Without the fat, it may also be a low calorie program which has problems of it's own. I did a quick search and found a website: www1.lindora.com if you would like to find out more about it.