comes from information on cereal boxes and the Special K website, pl 5x-trim-600 us a Special K Challenge message group on Yahoo featuring a blog from athlete Gabrielle Reece. There is nothing special about Special K products. In fact, most are not whole grain, and they tend to be low in fullness-promoting fiber and protein. (Of course, dieters could opt to do their own challenge, with their favorite high-fiber, high-protein cereal along with nutritious snacks and a healthy dinner meal.) If you take the Special K Challenge, think of it as a prelude to a well-balanced diet plan, and let those six pounds serve as a motivator to help you keep going.