Vitamin K2 (specifically MK-7 menaquinone-7) activates matrix Gla protein (MGP) and osteocalcin — two proteins that direct calcium to bones and prevent its deposition in arteries and soft tissues. Distinct from K1 (clotting), K2 primarily governs calcium metabolism. Often low in Western diets; found in natto, aged cheese, and fermented foods.

Key Benefits

Bone mineral density
Arterial calcification prevention
Heart disease risk reduction
Dental health
Synergistic with vitamin D3 for calcium utilisation

Best Form

MK-7 (long-acting; once-daily dosing; preferred over MK-4 which needs 3× daily)

Dosage

90–200 mcg MK-7/day

⚠ Safety Notes

Generally very safe. High doses may interact with warfarin — monitor INR. Do not confuse with K1 (phylloquinone).

This page is for educational purposes only. Consult a healthcare professional before starting any supplement.