The present invention provides marine lecithin preparations including a marine lecithin and one or more exogenous antioxidants. Also provided are a nutritional, pharmaceutical, or nutraceutical composition or a functional or medical food including the marine lecithin preparations. Also provided are processes for making the marine lecithin preparations. Also provided are methods of treating or preventing a disease or disorder, the methods including administering to a subject a therapeutically effective amount of the marine lecithin preparations. Also provided are methods of decreasing an oxidation status of a composition administrated to a subject in need of marine lecithin, the methods including administration of the composition and co-administration of an effective amount of the marine lecithin preparations to the subject in need of marine lecithin.