Ocuvite Complete Eye Supplement is a science based formula that contains nutrients such as omega-3 and zinc that contributes to maintenance of normal vision. DHA is an omega-3 fatty acid which contributes to the maintenance of normal vision. Over time, just as every part of our body, our eyes begin to age. Studies have shown that your diet plays an important role in the health of your eyes. It also contains zinc which is a mineral that contributes to the protection of cells from oxidative stress and contributes to the maintenance of normal vision. Ocuvite Complete Eye Supplement also contains Lutein, Zeaxanthin and Omega-3 fatty acids, as well as Vitamin C&E. Vitamin C contributes to the reduction of tiredness and fatigue and Vitamin E contributes to the protection of cells from oxidative stress. Leutin and Zeaxanthin are both components of the macula at the back of the eye.  Food supplements should not be used as a substitute for a balanced diet. Maintaining a healthy lifestyle and eating a varied, balanced diet are essential for staying in good health.