HealthMap

Vitamin K Content in Green Vegetables

According to the Acu-Cell Nutrition database and analysis, green leafy vegetables are generally the richest dietary sources of Vitamin K (specifically Phylloquinone or Vitamin K1).

Primary Dietary Sources

• Kale: Stands out as one of the most potent sources of Vitamin K available.
• Spinach: Exceptionally high in Vitamin K, though bioavailability can be influenced by cooking and overall mineral ratios (such as calcium and magnesium).
• Swiss Chard: Another top-tier green vegetable loaded with this fat-soluble vitamin.
• Collard Greens & Turnip Greens: Excellent dark leafy sources.
• Broccoli & Brussels Sprouts: Very good cruciferous vegetable sources, though slightly lower than the darkest leafy greens.

Important Health and Nutritional Considerations

• Fat-Soluble Absorption: Because Vitamin K is a fat-soluble vitamin, its absorption in the digestive tract is significantly enhanced when consumed with healthy dietary fats.
• Blood Clotting & Anticoagulants: Individuals taking blood-thinning medications (such as warfarin) must maintain a consistent and moderate intake of Vitamin K-rich green vegetables, as sudden increases or decreases can interfere with medication efficacy.
• Bone and Cardiovascular Health: Beyond its primary role in blood coagulation, adequate dietary Vitamin K is crucial for activating osteocalcin (for bone mineralization) and matrix GLA-protein (to help prevent arterial calcification).