The fat-soluble vitamins A, D, and K have vital and complementary physiological functions, critical to cardiovascular health, blood sugar regulation, immune function, and inflammation, but are perhaps most essential to optimal bone health. This is exemplified by a reduction in undercarboxylated osteocalcin as well as an increase in bone mineral density in postmenopausal women when vitamin K is added to vitamin D supplementation. Vitamin D has diverse and significant functions in multiple body systems, and widespread deficiency magnifies these crucial roles. Supplementation is associated with a well established reduction in osteoporotic fracture. Correcting a vitamin D deficiency is also critical when supplementing with vitamin A, as these nutrients have complementary physiological effects. Vitamin A appears to promote bone health as long as vitamin D levels are adequate, highlighting the importance of combined use. Vitamin K is now recognized as being necessary not only for coagulation, but for the carboxylation of enzymes critical for both bone and blood vessel health. The naturally derived MK-7 form in Bone-Link ADK has a longer half-life than any other form. Bone-Link ADK contains vitamin A palmitate, which has far greater absorption than carotenoids, does not require conversion (a process which is impaired in nearly half the population).
- Potent physiological balance of key fat-soluble vitamins, A, D, and K, critical to bone health
- Contains vitamin K2 (MK-7), the most bioactive and long lasting form
- Provides vitamin D3, shown to be more effective than D2 in maintaining blood levels of 25
- OH vitamin D15
- Optimal form of vitamin A, palmitate, bypasses impaired conversion of carotenoids