Menadione sodium bisulfite is widely used in the animal feed industry as a source of vitamin K3, which is essential for blood clotting and bone health in livestock and poultry. It helps prevent vitamin K deficiency, which can lead to hemorrhagic conditions and poor growth in animals. Additionally, it is utilized in aquaculture to support the health and development of fish and other aquatic species. In some cases, it is also employed in human medicine as a treatment for certain bleeding disorders, particularly when other forms of vitamin K are not suitable. Its water-soluble nature makes it effective for oral or injectable administration, ensuring efficient absorption and utilization in various biological systems.