Ascorbic acid (vitamin C) is an antioxidant medication found in
chewable tablets to prevent low vitamin C levels. Ascorbic acid
helps maintain the health of your cells, immune system, bones, and
blood vessels.
Ascorbic acid is often added to fruit juices, cereals, fruit-flavored
candies, dried fruit, cured meats, and frozen fruits to fortify or add
a citrus flavor. Ascorbic acid also acts as a preservative to keep
food, such as bread, cured meats, jams, and jellies, from spoiling.