Vitamin C is a vitamin. Some animals can make their own vitamin C, but people must get this vitamin from food and other sources. Good sources of vitamin C are fresh fruits and vegetables, especially citrus fruits. Vitamin C can also be made in a laboratory.
Most experts recommend getting vitamin C from a diet high in fruits and vegetables rather than taking supplements. Fresh-squeezed orange juice or fresh-frozen concentrate are good sources.
Historically, vitamin C was used for preventing and treating scurvy. These days, vitamin C is most commonly used for preventing and treating the common cold.
How does it work?
Vitamin C is required for the proper development and function of many parts of the body. It also plays an important role in maintaining proper immune function.