Why supplement?
Marked asPrimarySupporting
Supports blood clotting
γ-Glutamyl carboxylase uses K1 as a cofactor so prothrombin and factors VII, IX, and X can bind calcium and join the coagulation cascade. Spinach, kale, choy sum, and broccoli are the main food sources; people who bruise easily, whose gums bleed, and who almost never eat greens should first check whether this hepatic carboxylation path has been left empty by the diet.
Promotes bone mineralization
Osteocalcin is likewise a vitamin K–dependent protein and can bind hydroxyapatite only after carboxylation. Dietary K1 is taken up mainly by the liver first; greens remain the largest food source of vitamin K for the whole day. In a packed-lunch culture with few vegetables, both clotting factors and bone matrix lack this kind of carboxylation substrate.
Which symptoms may ease?
Slow wound healing
γ-Glutamyl carboxylase uses K1 as a cofactor so prothrombin and factors VII, IX, and X can bind calcium and join the coagulation cascade. People whose small cuts crust slowly and keep splitting more often notice healing speed and a smoother scar surface after several continuous weeks.
Which conditions may it support?
Osteoporosis
γ-Glutamyl carboxylase uses K1 as a cofactor so prothrombin and factors VII, IX, and X can bind calcium and join the coagulation cascade. People with low bone density who worry about fracture risk more often notice follow-up scans and confidence moving after several continuous weeks.
How to take it?
For people on warfarin, the priority is a stable daily intake—not cutting out vitamin K entirely.
How oftenUse the adequate daily intake; anyone on anticoagulants must ask a doctor first.
What to watch
Cautions
People with cholestasis or fat malabsorption should ask a clinician first.
People on vitamin K antagonists must keep intake stable and follow clinician monitoring.
Interactions
- Warfarin and other vitamin K antagonists (intake must stay stable)
· Usual food and supplement amounts are generally well tolerated
· Unstable anticoagulation control may increase thrombosis risk.
Long-term dependenceDoes not cause addiction or typical tolerance.
Sources
These are institution pages you can check—not a certification of this ingredient.

