Vitamin K1

Vitamin K1 is a Vitamin supplement available in 1 form.

Not all forms of Vitamin K1 are equal. The form you choose determines how much Vitamin K1 actually reaches your tissues, and the difference between the best and worst forms can be substantial. Vitamin K1 (phylloquinone) is the dietary form of vitamin K found in green leafy vegetables that primarily supports hepatic coagulation factor synthesis. Research supports vitamin K1 for promoting healthy blood coagulation protein activation and bone osteocalcin activity, serving as a foundational K vitamin alongside K2 forms.

Vitamin K1 (Secondary Form) has a bioavailability rating of good (S2). Typical dose range: not yet documented in our database.

Vitamin K1 (phylloquinone) is the primary dietary form of vitamin K, predominantly found in green leafy vegetables. It is the form most directly involved in hepatic synthesis of clotting factors. While MK-7 has superior extrahepatic activity, K1 remains clinically important for individuals on anticoagulant therapy requiring precise dosing management.

Multiple forms of Vitamin K1 are available. Start by comparing form ratings — Preferred Forms reflect the strongest bioavailability evidence, and S1-rated forms deliver the most active compound per dose unit.

The appropriate form depends on your individual goals and your healthcare provider’s recommendations. Consult a qualified professional before selecting a supplement form.

For Vitamin K1, the typical dosing range is not yet documented in our database. Individual dose requirements vary based on health goals, body weight, and existing nutrient intake.

Side Effects: Specific side effect data for these forms is not yet documented in our database. In general, consult your healthcare provider regarding tolerability at higher doses.

These statements are based on structure/function research and have not been evaluated by the FDA. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting or changing a supplement regimen.