I lost a little over 30 pounds last year by doing a modified South Beach diet (a little more generous on the fruit and whole grains but avoiding all simple carbs) while training for the Princess Half marathon (down 60lbs from my all time high) and still need to lose another 30 to get to my goal weight (right at the top of the "correct weight/BMI range" for me). My weight loss stalled around November and I've been stuck at my current weight (+/- 5lbs) since then. I'm very happy with my progress this far. I'm very happy that I haven't put the weight back on. But I really really really want to get to and stay at my goal weight. Has anyone had success doing South Beach while training for distance races or doing other heavy exercise (one hour a day or more)? Do you modify it in any way to compensate for the need for carbs while training? Would I be better off on Weight Watchers? As you can tell, I'm feeling a little lost. I'm recommitting to serious effort towards my goals when I get back from the Expedition Everest 5k at Disney next weekend and I'd like to figure out whether to go back to South Beach or to try Weight Watchers. Any thoughts, experiences or suggestions would be exceedingly welcome!