This formula combines vitamins K-2 (MK-7) and D3. The benefits of Vitamin D (maintaining strong bones, immune system support, healthy muscle function, etc.), are well known but many don’t realize that Vitamin D requires vitamin K-2 to maximize its benefits. If you’re supplementing with vitamin D, it is a good idea to take vitamin K-2 as well. Vitamin D3 helps your body absorb calcium, and Vitamin K-2 (as MK-7, a form with high bioavailability) directs the calcium to your bones instead of your joints and arteries, where too much calcium could be problematic. Just one MicroLingual Tablet per day provides 100 mcg of K-2 (as MK-7) and 5,000 IU of D3 which helps support strong bones, a healthy cardiovascular and immune system.