Vitamin K plays a crucial role in blood clotting and bone health. It helps synthesize proteins necessary for coagulation, preventing excessive bleeding. There are two forms: K1 (found in leafy greens) and K2 (found in animal products and fermented foods). Adequate vitamin K intake may also contribute to maintaining bone density and reducing fracture risk, especially in older adults. However, a balanced diet typically provides sufficient vitamin K, making supplementation unnecessary for most individuals. Monitoring intake is important for those on anticoagulant medications, as vitamin K can affect their efficacy.