Denominations of Origin (DO) are labels that signify a product's geographical origin and ensure its quality and authenticity. This system is commonly used for food and beverages, such as wine, cheese, and olive oil. A DO guarantees that the product is made according to specific standards and traditional methods in a designated area. In many countries, including Spain and France, DOs are legally protected to prevent misuse and maintain the reputation of local products. This helps consumers identify genuine items and supports local economies by promoting regional specialties.