Zinc, represented by the symbol Zn, is a chemical element with the atomic number 30. It is a bluish-white metal that is essential for human health and plays a crucial role in various biological functions. Zinc is commonly found in nature, primarily in minerals like sphalerite and is used in various applications, including galvanizing steel to prevent rust. In addition to its industrial uses, zinc is vital for the immune system, wound healing, and DNA synthesis. It can be found in foods such as meat, shellfish, legumes, and nuts. Zinc deficiency can lead to health issues, highlighting its importance in nutrition.