Although free radicals may sound like members of a sixties' political group, they actually represent one of the most exciting discoveries in nutrition today. Free radicals are small molecules with an extra electron. They hurtle through tissue looking for electrons to steal. This shooting spree wounds cell membranes and can damage the DNA codes within the cell's nucleus.
— Juicing for Life: A Guide to the Benefits of Fresh Fruit and Vegetable Juicing
by Cherie Calbom, Maureen Keane