The Journal of Science and Nutrition (REDCieN) is a scientific journal sponsored by the Mexican College of Dieticians A.C. It publishes original articles, author's opinions (reviews), systematic reviews, editorials, technical reports, conference manuscripts, and poster abstracts of academic-scientific events related to nutrition and health. In this special edition of Volumen 10.EE2, the proceedings of the XXII National Congress of the Mexican College of Clinical Nutrition and Nutritional Therapy, A.C. are published, which took place in Leon, Guanajuato, Mexico from November 8 to 11, 2023.