Coinciding with World Water Day, held on March 22, and in order to raise awareness among the population about the importance of maintaining adequate hydration, CIEAH organized a scientific session on “Hydration and Health in Europe XXI century “at the Royal European Academy of Doctors of BarcelonaThe event was moderated by Prof. Dr. Maria dels Angels Calvo Torras, President of the Health Sciences Section of the Royal Academy of European Doctors and attended by Prof. Dr. Lluís Serra Majem, Director of CIEAH and Professor of Preventive Medicine and Public Health at the University of Las Palmas de Gran Canaria (ULPGC), who explained the importance of the relationship between hydration and health, highlighting the current challenges of water management in all sectors. On the other hand, Prof. Dr. Javier Aranceta Bartrina, Director for Latin America CIEAH, presented the hydration guidelines in the national and international dietary guidelines. The meeting was also attended by Dr. Rafael Urrialde Andrés, Director of Nutrition and Health Coca Cola Iberia, who addressed the vision of the industry with his presentation on “Water and other ingredients in the hydration process.” Closing the session we were able to listen to Don Faustino Muñoz Soria, Sommelier and Director of Colmado Quilez, with his presentation “The water in the kitchen and in the catering services”.