Why Choose? One of the most well-known benefits of vitamin A is its ability to help sustain and support your eyesight1 — maintaining your vision1 and helping to keep your eyes healthy. Plus, it helps you keep your body’s natural defences high,2 so you can look3 and feel your best when training hard. 1. Vitamin A contributes to the maintenance of normal vision 2. Vitamin A contributes to the normal function of the immune system 3. Vitamin A contributes to the maintenance of normal skin