Vitamin K2 (MK-7) is a form of vitamin K2, specifically menaquinone-7, known for its superior bioavailability and longer half-life compared to other forms. Here are its key benefits, grounded in scientific understanding:
- Bone Health: MK-7 activates osteocalcin, a protein that binds calcium to the bone matrix, promoting bone mineralization and strength. Studies suggest it may reduce bone loss and fracture risk, particularly in postmenopausal women with osteoporosis.
- Cardiovascular Health: MK-7 activates matrix Gla protein (MGP), which inhibits calcium deposits in blood vessels and arteries. This helps prevent arterial calcification, potentially reducing the risk of heart disease and improving vascular elasticity.
- Calcium Regulation: By directing calcium to bones and teeth, MK-7 prevents its accumulation in soft tissues like arteries and kidneys, supporting overall calcium metabolism.
- Dental Health: Through osteocalcin activation, MK-7 may support tooth remineralization and dentin formation, contributing to stronger teeth.
- Potential Anti-Inflammatory Effects: Emerging research indicates MK-7 may reduce inflammation markers, which could benefit chronic disease prevention, though more studies are needed.
- Long-Lasting Effects: MK-7’s longer half-life (up to 3 days) ensures sustained activity compared to other vitamin K forms, making it effective at lower doses.
Sources: MK-7 is found in fermented foods like natto, certain cheeses, and supplements. It works synergistically with vitamin D3 for optimal bone and heart health.
Note: Consult a healthcare provider before supplementing, especially if on blood thinners, as vitamin K can affect clotting.
Vitamin K2: Everything You Need to Know | Healthline