Vitamin K is a fat-soluble vitamin essential for blood clotting and bone health. It exists in two main forms: K1, found in leafy green vegetables like spinach and kale, and K2, which is found in fermented foods and animal products. This vitamin helps proteins in the body bind calcium, playing a crucial role in maintaining strong bones and preventing excessive bleeding. Deficiency in vitamin K can lead to serious health issues, including increased bleeding and weakened bones. Most people get enough vitamin K through their diet, but certain conditions or medications can affect absorption. It's important to maintain a balanced diet to ensure adequate intake of this vital nutrient.