Re: Vitamin A or Zinc is helping me

Although regular grapefruit is high in vitamin A, it does not appear that this chinese grapefruit polemo has any vitamin A in it. Since clementines also had the same effect on your lips, I would say it is the vitamin C. Vitamin C strengthens your immune system when you are stressed (to fight off infections) along with so many other benefits. In the past, I thought about getting a high infusion of vitamin C. Tweet