Menadione is widely used in the animal feed industry as a source of vitamin K, essential for blood clotting and bone health in livestock and poultry. It helps prevent vitamin K deficiency, which can lead to hemorrhagic conditions. In the pharmaceutical sector, it is utilized in the formulation of dietary supplements to address vitamin K deficiencies in humans. Additionally, menadione has applications in research laboratories as a biochemical tool to study oxidative stress and cellular processes due to its role in the electron transport chain. It is also employed in some cosmetic products for its antioxidant properties, helping to protect skin cells from damage caused by free radicals.