In general, experts say adding vitamins D and C supplements could be a great thing for your immune system. In fact, Vitamin D can strengthen your bones, reduce inflammation, promotes calcium absorption and help with immune function.

Nonetheless, Vitamin C helps heal wounds and repair and maintain healthy bones, teeth, skin and cartilage. As an antioxidant, vitamin C fights free radicals in the body which may help prevent or delay certain cancers and heart disease and promote healthy aging.