Romaine lettuce is a type of lettuce that is widely consumed worldwide due to its crisp texture and slightly bitter flavor. Research in this area often focuses on the cultivation, production, and quality of romaine lettuce, including topics such as optimal growing conditions, disease resistance, post-harvest handling, nutritional value, and sensory attributes. Studies may also investigate the health benefits of consuming romaine lettuce, such as its high fiber content, vitamins, and antioxidants. Additionally, there may be research on ways to improve the sustainability and environmental impact of romaine lettuce production.