Waxy maize is named because of the way it appears under a microscope. It is a type of corn that contains nearly 99% amylopectin in its kernels. Amylopectin is basically the plant equivalent of glucose, and it is water soluble.
Amylopectin is a very dense polysaccharide and therefore it quickly bypasses the stomach and enters the small intestines where it is absorbed into the bloodstream quickly. Once it is in the bloodstream it provides sustained energy to the muscles and helps restore lost glycogen (stored energy).
Waxy maize does not cause an insulin spike. It is a quickly and easily absorbed carbohydrate that provides sustained energy maintenance and replenishment.