Why Choose? One of the most well-known benefits of vitamin A is its ability to help sustain & support your eyesight 1 — maintaining your vision 1 & helping to keep your eyes healthy. Plus, it helps you keep your body’s natural defences high, 2 so you can look 3 & 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