Hello, were you aware that vitamin C is an essential nutrient involved in the repair of tissues and certain neurotransmitters?
No I wasn't. I know it is good to prevent colds.
Yes, it is part of essential human nutrition that is necessary to support human life and health.
Vitamin C is definitely one of the many vitamins essential to good health along with regular exercise. 
One disease that vitamin C is known to prevent is scurvy. This can be prevented with vitamin C containing foods or by taking dietary supplements.
Oranges, strawberries and guava are some of my favorite fruits that contain vitamin C
Please be aware that cooking or storing food products that contain vitamin C for long periods of time may reduce the Vitamin C content in those foods.