Macula-Z contains zinc and DHA which contribute to the maintenance of una normal vision. Macula-Z is a dietary supplement based on lutein, zeaxanthin, vitamins, minerals and fish oil rich in Omega 3 (DHA). The oils used in Macula-Z have undergone a specific treatment to eliminate the fishy "odor and taste." Vitamins C, E, copper, and zinc help protect cells from oxidative stress.