The book "Fitoterapia: Aplicabilidade Clínica e Nutricional" (Phytotherapy: Clinical and Nutritional Applicability) is a collection of studies on phytotherapy and nutrition, covering topics such as drug x nutrient interaction, the population's knowledge of the use of phytotherapics, the consumption of teas for weight loss, the association of phytotherapics with nutritional therapy in wound healing, the importance of phytotherapy in various pathologies, as well as presenting some of the most commonly used medicinal plants and classic concepts of phytotherapy. The thematic axes covered guarantee a broad discussion of results, encouraging, promoting and improving research, which has sought to analyze the most diverse species of medicinal plants, their active principles and beneficial functions for the body. Finally, this book focuses on the applicability of phytotherapy and its importance in clinical and nutritional terms, with the aim of providing guidance to health professionals and expanding knowledge about the role of nutrients and the use of phytotherapics in the treatment of a wide range of pathologies.