Ascorbic Acid ( Vit c )

Vitamin C, also known as ascorbic acid and ascorbate, is a vitamin found in various foods and sold as a dietary supplement.[4] It is used to prevent and treat scurvy.[4] Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters.[4][5] It is required for the functioning of several enzymes and is important for immune system function.[5][6] It also functions as an antioxidant.[7] There is some evidence that regular use of supplements may reduce the duration of the common cold, but it does not appear to prevent infection.[7][8][9] It is unclear whether supplementation affects the risk of cancer, cardiovascular disease, or dementia.[10][11] It may be taken by mouth or by injection.[4] Vitamin C is generally well tolerated.[4] Large doses may cause gastrointestinal discomfort, headache, trouble sleeping, and flushing of the skin.[4][8] Normal doses are safe during pregnancy.[1] The United States Institute of Medicine recommends against taking large doses.[5]