Wild arugula is an excellent source of vitamin K to help with wound healing and vitamin A to strengthen the immune system, protect against vision loss, and improve skin complexion. The greens also contain vitamin C to reduce inflammation, potassium to regulate fluid levels within the body, and calcium to strengthen bones. Beyond vitamins and minerals, Wild arugula is believed to contain glucosinolates, which are compounds that give the greens their bitter flavor and are said to help in disease prevention.