Phytochemistry is the study of the chemical compounds found in plants. These compounds, known as phytochemicals, play essential roles in plant growth, development, and defense against pests and diseases. Phytochemistry helps scientists understand how these substances can be used in medicine, nutrition, and agriculture. Researchers in phytochemistry analyze various plant extracts to identify beneficial compounds, such as alkaloids, flavonoids, and terpenes. These compounds can have antioxidant, anti-inflammatory, and antimicrobial properties, making them valuable for developing new drugs and health supplements. Understanding phytochemistry can lead to advancements in natural product research and sustainable practices.