Antioxidants are found naturally in many of the fruits and vegetables that you eat every day. They protect you from oxidants, also known as free radicals, to keep you healthy and happy. Oxidants are elements that are highly reactive due to having unpaired electrons. This unpaired electron tries to pair with electrons in materials throughout your body by forcing reactions, thus damaging cells. Antioxidants protect your body from oxidants in multiple ways, but most commonly by reacting with oxidants before they can force reactions with other cells in your body.