The body's cells are under constant onslaught from oxidants such as reactive oxygen species (ROS). These oxidants are generated both endogenously (within the body) and are absorbed exogenously from the environment.
Regardless of origin, excess free radicals and oxidants in the bloodstream may alter (i.e., oxidize) macromolecules in the blood or cell membranes. “If not eliminated, such molecules may trigger the development of pathological conditions,� says Zbigniew Pietrzkowski, vice president of research and development, VDF FutureCeuticals Inc.