Vitamin K2
Vitamin
Directs calcium to bones and away from arteries.
Form: Capsule
Recommended intake: 90–180 µg/day (MK-7 form)
Benefits
May improve bone mineral density and reduce arterial calcification.
Warnings
Interferes with warfarin and other vitamin-K antagonists — avoid in patients on these anticoagulants.
Description
Vitamin K2 (menaquinone) activates osteocalcin and matrix Gla protein. Often paired with vitamin D3 and calcium in bone-health supplements.