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Una revisión detallada de todos los capítulos, incluyendo en cada uno un resumen de los aspectos más destacados. Se han añadido 20 nuevos capítulos para cubrir aspectos relevantes de importancia creciente en las Ciencias de la Nutrición. La estructura de los diferentes capítulos responde a un criterio de «libro útil para la enseñanza», centrado en los objetivos docentes y apoyado en imágenes y tablas que facilitan la comprensión de la materia. En cada tomo se agrupan los temas relacionados, manteniendo también una vinculación directa entre tomos cuando ha sido necesaria. Cada tomo del tratado contiene un glosario de términos para facilitar al lector la comprensión del texto. La versión digital contiene material complementario con cuestionarios de autoevaluación que facilita al estudiante la preparación de la materia. Este tratado aúna y armoniza las bases fisiológicas, bioquímicas y moleculares de la nutrición con los conocimientos relativos a la composición y el valor nutritivo de los alimentos, la nutrición en el estado de salud y la nutrición clínica. Esta nueva edición consta de 193 capítulos agrupados por su temática, en cinco tomos: I. Bases fisiológicas y bioquímicas de la nutrición II. Bases moleculares de la nutrición III. Composición y calidad nutritiva de los alimentos IV. Nutrición humana en el estado de salud V. Nutrición y enfermedad El tomo IV aborda el conocimiento de los requerimientos nutricionales, de las guías dietéticas y de vida saludable en diferentes etapas de la vida, desde el lactante hasta el anciano, analizando la influencia de la actividad física sobre la prevención de la enfermedad. Además, se consideran varios aspectos de interés relacionados con la nutrición y la salud pública y los sistemas de información y documentación en nutrición. Se abordan también aspectos novedosos, como la sostenibilidad alimentaria y la importancia de la inteligencia artificial en la nutrición de precisión.