Not synthesized by the body, these 3 classes of denutritments must be made at the recommended doses.
DHA (contained in omega-3s) helps maintain a normal visual function. The beneficial effect is obtained by the daily consumption of 250 mg of DHA.
Vitamins C, E, and zinc help protect cells against oxidative stress. Zinc contributes to the maintenance of a normal visual function.
Lutein is one of the constituents of the macular pigment (retina).