Life Extension Super K - Vitamin K1 and Two Forms of K2 90 softgelsBrand: Life Extension Features: STRONG BONES, HEALTHY HEART This formula provides a potent dose of 2600 mcg of Vitamin K from both K1 and 2 forms of K2. Vitamin K helps maintain your bodys calcium balance, which affects everything from arterial health to bone density health. But its hard to get sufficient vitamin K from food WHY YOU NEED A VITAMIN K SUPPLEMENT In food, vitamin K1 is found leafy green vegetables, but its hard for your body to absorb