Vitamin C, also known as L-ascorbic acid, is naturally present in some foods, and also available as a dietary supplement.
Humans, unlike most animals, are unable to synthesize vitamin C, so it must be obtained through our diet or supplementation.
Vitamin C is required for the biosynthesis of collagen, L-carnitine, and certain neurotransmitters; vitamin C is also involved in protein metabolism. Collagen is an essential component of connective tissue, which plays a vital role in wound healing. Vitamin C is also an important physiological antioxidant and has been shown to regenerate other antioxidants within the body, Vitamin E. Ongoing research is examining whether vitamin C, by limiting the damaging effects of free radicals, might help prevent or delay the development of certain cancers, cardiovascular disease, and other diseases in which oxidative stress plays a causal role. Vitamin C also plays an important role in our immune function and improves the absorption of nonheme iron, the form of iron present in plant-based foods. Insufficient vitamin C intake causes scurvy, which is characterized by fatigue or lassitude, widespread connective tissue weakness, and capillary fragility.
Vitamin C is required for the growth and repair of tissues in all parts of your body. It is used to form collagen, a protein used to make skin, scar tissue, tendons, ligaments, and blood vessels. It is also essential for the healing of wounds, and for the repair and maintenance of people's cartilage, bones, and teeth. Vitamin C also helps with blood pressure by strengthening the walls of the arteries. It can also prevent damage to cells caused by aging as well as help reduce stress.