Nutritional and dietary supplements are also used in treating CDS. Antioxidants (e.g., vitamin E) and mitochondrial cofactors (e.g., lipoic acid and fatty acids) work together to slow damage of free radicals and protect cell membranes.4 Some prescription diets also contain antioxidants, lipoic acid, carnitine, omega-3 fatty acids, and other nutrients to combat brain aging and age-related behaviora