Zinc is a transition metal element with the atomic number 30. It has a bluish-white color, a density of 7.13 g/cm³, and a melting point of 419.5 °C. Zinc is a versatile metal that is widely used in various industries, such as construction, electronics, and transportation. It is also an essential nutrient for human health, as it is involved in over 300 enzymatic reactions in the body. Zinc is particularly important for immune system function, wound healing, and vision. Zinc deficiency can cause various health problems, such as impaired immune function, delayed wound healing, and growth retardation. Zinc can be obtained from various food sources, including meat, seafood, dairy products, whole grains, and legumes. Zinc supplements are also available for individuals who may be at risk of deficiency. While zinc is essential for human health, excessive consumption of zinc can lead to toxicity and adverse health effects.