For anyone who wants to lose weight, gain energy, and say goodbye to chronic sickness, take it from me, the Zone works. Two years ago I was sick of being overweight and sick of suffering with chronic sinusitis. I read the Zone, followed the guidelines for Zone-friendly meals, and within two days I saw a significant difference in my energy levels. Within two weeks my clothes were fitting again. Now, two years later, I have lost 35 pounds without having gained back one ounce. And I didn't kill myself with exercise. My eating habits are completely changed and I pay attention to every meal without being obsessive about it. And, I haven't suffered with a sinus infection or any illness requiring medication since. As for the complexity of The Zone, I really wanted to lose the weight and get my energy back, so I made myself understand it. Even the technical stuff. But there's no reason why one couldn't skip the really complex stuff and still understand and apply Dr. Sears' method. It works and I tell everyone I know--if you are serious about getting healthy, read The Zone.