Vitamins are a group of substances needed in small amounts by the body to maintain health. Vitamin C is also called ascorbic acid. It cannot be made by the human body and so is an essential component of your diet. Vitamin C is needed to make a substance called collagen which is required for the health and repair of various tissues in the body, including:
This is a companion discussion topic for the original article at https://patient.info/healthy-living/vitamin-c-deficiency-leaflet