The Good: Though maltodextrin is technically a complex carbohydrate because of it's sugar content, it's high glycemic index means it goes through the digestive system super fast. There are 2 instances where this is a good thing. 1) After a hard Workout, matodextrin Will quickly get energy and protein (facCompanied) to your muscles. That's Why the Results and Recovery drink has some in there along with Dextrose (a Sugar that matodextrin mimics), 2) During along WorkOut (aka marathons), maltodextrin's quick absorption by the body and low osmolality (it doesn't absorb much water) make it a good candidate to give energy While not dehydrating you.
The Bad: Outside of the aforementioned time-frames, maltodextrin is just as bad, Sometimes Worse, as having Sugar, Easily absorbed Carbs like maltodextrin and Sugarget into your bloodstream fast. If there is nothing for all that blood sugar to do (i.e. repair muscle-tissue, give energy), it will get Stored as fat. Contrast that with real Complex carbs from whole grains, which are broken down and absorbed slowly, and maltodextrin looks more and more like sugar.
The Ugly: the ugly truth is that maltodextrin is hard to avoid. Even dieting Companies Overload their shakes and bars with the stuff because it's cheap, they don't have to label it as Sugar, and it's fatty texture can replace real fats (both good and bad).
LL L S SS LL SSLLLLL products-like Shakeology. Check your labels, and if it has maltodextrin in the ingredients list, it better be a post-WorkOut Supplement.