Vitamin K2

Vitamin K2 (menaquinone-7 or MK-7) is a fat-soluble vitamin that plays a critical role in bone metabolism and proper calcium utilization in the body. Unlike vitamin K1, which primarily supports blood clotting, vitamin K2 is involved in activating proteins that help direct calcium into bones and teeth while preventing unwanted calcium deposition in soft tissues such as blood vessels. Because of this dual benefit, MK-7 has gained significant attention in bone health and cardiovascular wellness support.

Biologically, vitamin K2 activates osteocalcin and matrix Gla protein, two key regulators of calcium transport and bone mineralization. Adequate levels help improve bone density, support skeletal strength, and complement the action of vitamin D3 and calcium. This is why MK-7 is commonly included in advanced bone health formulations, particularly for aging adults and postmenopausal women.

Clinically, vitamin K2 supplementation is often recommended in individuals with low dietary intake, those at risk of osteoporosis, or patients using long-term vitamin D supplementation. It is typically taken once daily and is well tolerated in most individuals when used within recommended limits.

Patients taking anticoagulant therapy should consult a healthcare professional before starting vitamin K2, as it may influence clotting parameters. When incorporated into a balanced nutritional strategy, MK-7 plays an important supportive role in maintaining strong bones and healthy calcium distribution.