This volume, Plant Secondary Metabolites: Volume 1: Biological and Therapeutic Significance, presents important information on the curative and therapeutic roles of secondary metabolites that are present in different natural food groups. The book showcases the applications of herbal-based food group and also includes the effective utility of other plant-based food categories as well. In addition to the clinical role of secondary metabolites, other natural sources, such as micro-algae and bacterial cellulose, are also presented as efficacious sources of functional components.