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.