The term used to describe a naturally occurring substance that can be used for medicinal purposes is phytochemical. Phytochemicals are bioactive compounds derived from plants, which exhibit health-promoting properties. These substances may have antioxidant, anti-inflammatory, and antimicrobial effects, and many are used in traditional and modern medicine. For example, compounds such as alkaloids, flavonoids, and terpenes found in various plants form the basis of many pharmaceuticals. The study of phytochemicals enriches our understanding of natural remedies and supports the development of novel therapeutic agents.