Vitamin C

Vitamin C, also called ascorbic acid, is a water-soluble vitamin with antioxidant properties. You need vitamin C to synthesize structural components of your body, including collagen, ligaments, tendons and bone. Vitamin C is involved in the production of neurotransmitters, chemical messengers in your brain. The vitamin also plays a role in synthesizing carnitine for fat metabolism. As an antioxidant, vitamin C protects DNA, RNA, proteins and other indispensable substances from free radicals, chemicals that can damage cells and increase aging. Vitamin C also stimulates your immune system and helps you fight off infections. Foods that contain vitamin C include fruits, such as oranges and strawberries, tomatoes and broccoli.