Disclosed are antioxidative, natural compounds, their salts, chelates and cleavage derivatives that exhibit a superior combination of properties. The compounds can be used for a variety of purposes, including stabilizing foods, cosmetics, beverages and nutritional supplements. The compounds can be prepared by hydrolyzing a fulvic acid of formula I or VIII to provide at least one antioxidant compounds of formula II, formula III, formula IV, formula V, formula VI, formula VII, salts, or chelates thereof.