According to new research findings, men consuming large amounts of citrus fruits and other vitamin C-rich fruits and vegetables significantly lower their risk of developing premalignant lesions. Past research has show that 16 to 40 percent of these premalignant lesions turn cancerous. In the study, researchers included more than 42,000 men who completed questionnaires at various intervals. Their findings indicated that men who consumed greater amounts of citrus fruits and juices as well as fruit and vegetables high in Vitamin C lowered their risk of oral precancerous lesions by 30 to 40 percent.