Vitamin K and vitamin C are two vitamins that are essential for your health. Vitamin K is a fat-soluble vitamin that helps with blood clotting and bone health. It can prevent excessive bleeding and reduce the risk of osteoporosis. A cup of green beans has about 22 micrograms of vitamin K, which is about 18% of your daily recommended intake. Vitamin C is a water-soluble vitamin that helps with immune system function, wound healing, collagen synthesis, and antioxidant activity. A cup of green beans has about 12 milligrams of vitamin C, which is about 13% of your daily recommended intake. However, vitamin C is heat sensitive, so after cooking the amount of vitamin C left will be negligible.