Vitamin A

Take Vitamin A from food sources only as a dietary supplement is proved by science (through randomized trials, not observational) to INCREASE the risk of dying.

So it does the opposite of it aims to do on the label. In other words, those who take Vitamin A, die 16% more based on the scientific randomized study below. Thus Vitamin A supplement use is actively discouraged by scientists behind these studies. 

https://www.youtube.com/watch?v=2mDrAQi1SwU&t=1102s

Foods high in Vitamin A: