Yes Vitamin C does actually help boost your bodies immune system.
When your immune system is boosted and healthy and working properly it means that your immune system helps to fight off viruses in your body naturally.
So when your bodies immune system is healthy and working properly the body can fight off the cold or flu virus or other viruses in your body naturally.
So it's important to have enough Vitamin C inside your body.
Drinking orange juice, eating oranges and other fruits and vegetables and natural fruit and vegetable juices can help your bodies immune system because not only do they provide your body with Vitamin C they also provide your body with other Vitamins, Minerals and Nutrients that our bodies need to stay healthy.
You can also take some Vitamin C supplements daily to boost your immune system.