Why don't you get sick each time you drink orange juice?

Actually, it is a myth that drinking Orange Juice prevents sickness, but it's a myth with some truth to it. Orange juice is high in vitamin C. This vitamin is very important to the immune system in fighting off disease. So, while drinking orange juice probably will not prevent every cold or case of the flu, it will definitely give you the vitamin C that helps your body to resist the illness, and it may even speed recovery along.

That said, if you are asking whether drinking orange juice can make you sick, there are some people who find orange juice difficult to digest because it is acidic. If you are someone who gets heartburn after drinking orange juice, you may want to seek another kind of juice that agrees with your digestive system better.