Hermetica Superfood Encyclopedia
The Short Answer
Full-spectrum vitamin K combines K1 (phylloquinone), MK-4, and MK-7 (menaquinones) to activate vitamin K-dependent proteins throughout the body. These compounds activate osteocalcin for bone mineralization and matrix Gla protein to prevent arterial calcification.
CategoryVitamin & Mineral
GroupVitamin
Evidence LevelStrong
Primary Keywordfull spectrum vitamin K benefits
Synergy Pairings5
Full-Spectrum Vitamin K (K1 + MK-4 + MK-7) — botanical close-up
Health Benefits
Supports bone health by activating proteins that bind calcium, crucial for preventing osteoporosis. - Enhances cardiovascular health by reducing arterial calcification, which can lower heart disease risk. - Supports cognitive function by reducing oxidative stress, potentially lowering the risk of Alzheimer's disease. - Aids in blood clotting, which is essential for wound healing and preventing excessive bleeding. - Promotes skin health by supporting collagen production, which is vital for maintaining elasticity and reducing wrinkles. - Supports joint health by reducing inflammation, which can alleviate arthritis symptoms. - Enhances metabolic health by improving insulin sensitivity, which can help manage diabetes risk.
Origin & History
Natural habitat
Full-Spectrum Vitamin K combines K1, MK-4, and MK-7 to provide comprehensive support for bone and cardiovascular health. These forms are derived from plant and bacterial sources.
“Vitamin K has been recognized for its role in blood clotting and bone health, with traditional uses in various cultures for maintaining cardiovascular health.”Traditional Medicine
Scientific Research
Studies suggest that combining different forms of vitamin K can enhance its benefits for bone density and cardiovascular health. Evidence supports its synergistic effects with vitamin D.
Preparation & Dosage
Traditional preparation
Dosages typically include 100 mcg of K1, 100 mcg of MK-4, and 100 mcg of MK-7. Consult a healthcare provider before use.
Nutritional Profile
Full-Spectrum Vitamin K is a fat-soluble vitamin supplement combining three primary forms: Phylloquinone (K1), Menaquinone-4 (MK-4), and Menaquinone-7 (MK-7). Typical formulations provide approximately 1,000–2,000 mcg Vitamin K1 (phylloquinone, derived from plant sources such as alfalfa or spinach extract), 1,000–1,500 mcg MK-4 (menaquinone-4, a short-chain menaquinone with rapid absorption but shorter half-life of ~2–4 hours), and 100–200 mcg MK-7 (menaquinone-7, a long-chain menaquinone typically derived from natto/Bacillus subtilis fermentation with a substantially longer half-life of ~72 hours, enabling sustained serum levels). Contains no significant macronutrients (protein, carbohydrates, fat, or fiber) per serving. Key bioactive compounds include the naphthoquinone ring structure common to all K vitamins, which serves as the essential cofactor for gamma-glutamyl carboxylase, activating vitamin K-dependent proteins (osteocalcin, matrix Gla protein, prothrombin, factors VII, IX, X, and proteins C and S). Bioavailability notes: All forms are fat-soluble and absorption is significantly enhanced (up to 3–8x) when taken with dietary fat (ideally 10–15 g). K1 bioavailability from supplements is approximately 80% (higher than from food sources at ~5–10% from green vegetables). MK-4 is rapidly absorbed but extensively metabolized, leading to a short duration of action. MK-7 has superior bioavailability and bioaccumulation due to its long half-life, achieving steady-state serum concentrations after ~2 weeks of daily dosing, and is more effective at carboxylating extrahepatic proteins (osteocalcin, MGP) at lower doses. MK-7 is approximately 2–3x more bioavailable than K1 on a microgram-per-microgram basis for extrahepatic tissue activation. Some formulations include medium-chain triglycerides (MCTs) or olive oil as carrier lipids to further enhance absorption. No significant mineral or additional vitamin content unless specifically fortified. The combination of all three forms provides both rapid hepatic support (K1 for coagulation) and sustained extrahepatic tissue benefits (MK-4 and MK-7 for bone and cardiovascular health).
How It Works
Mechanism of Action
Vitamin K serves as a cofactor for gamma-glutamyl carboxylase, which activates vitamin K-dependent proteins by converting glutamic acid residues to gamma-carboxyglutamic acid. This process activates osteocalcin for calcium binding in bones and matrix Gla protein (MGP) to prevent soft tissue calcification. MK-7 shows superior bioavailability and longer half-life compared to K1, while MK-4 rapidly converts to menaquinone-4 in tissues.
Clinical Evidence
A 3-year randomized controlled trial of 244 postmenopausal women found 180 mcg daily MK-7 reduced bone loss and improved bone strength. Meta-analyses of vitamin K studies show 6-12% reduction in fracture risk with consistent supplementation. Cardiovascular studies indicate 90-360 mcg daily MK-7 for 12-36 months reduces arterial stiffness by 3-6%. Evidence is strongest for bone health, with emerging but promising data for cardiovascular benefits.
Safety & Interactions
Vitamin K can reduce warfarin effectiveness by promoting clotting factor synthesis, requiring careful monitoring in anticoagulated patients. Generally well-tolerated with no established upper intake limit, though doses above 1000 mcg may cause mild gastrointestinal upset. Contraindicated in individuals with known hypersensitivity to vitamin K compounds. Safe during pregnancy and breastfeeding at nutritional doses, but high-dose supplementation should be avoided without medical supervision.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Phylloquinone + Menaquinone-4 + Menaquinone-7Vitamin K ComplexK1+K2 CombinationPhytonadione-Menaquinone ComplexComplete Vitamin KKoagulationsvitamin KomplexMulti-K Vitamin
Frequently Asked Questions
What's the difference between K1, MK-4, and MK-7?
K1 (phylloquinone) primarily supports blood clotting, MK-4 has the shortest half-life but reaches all tissues quickly, while MK-7 has superior bioavailability and remains active for 72 hours. MK-7 shows the strongest evidence for bone and cardiovascular benefits due to its longer duration of action.
How much full-spectrum vitamin K should I take daily?
Typical doses range from 100-200 mcg daily, with many studies using 90-180 mcg of MK-7 specifically. The adequate intake for adults is 90-120 mcg daily, but therapeutic doses for bone health may be higher with medical supervision.
Can I take vitamin K with blood thinners?
Vitamin K supplementation requires careful medical monitoring with warfarin and other vitamin K antagonist blood thinners, as it can reduce their effectiveness. Direct oral anticoagulants (DOACs) like rivaroxaban are less affected, but consultation with healthcare providers is essential.
Which form of vitamin K is best for bone health?
MK-7 shows the strongest evidence for bone health due to its superior bioavailability and longer half-life, allowing better activation of osteocalcin. Studies typically use 90-180 mcg daily of MK-7, though full-spectrum formulas provide broader tissue support.
How long does it take to see benefits from vitamin K supplementation?
Blood levels of vitamin K increase within hours, but functional benefits develop over months. Bone health markers improve after 3-6 months of consistent supplementation, while cardiovascular benefits may take 6-12 months to become measurable through reduced arterial stiffness.
What foods contain vitamin K1, MK-4, and MK-7 naturally?
Vitamin K1 (phylloquinone) is abundant in leafy greens like spinach, kale, and broccoli, while MK-4 is found in animal products such as grass-fed butter, eggs, and cheese. MK-7 (menaquinone-7) is primarily produced by fermentation and is found in fermented foods like natto (fermented soybeans), sauerkraut, and some cheeses. Most people can obtain adequate K1 from diet alone, but MK-4 and MK-7 typically require either animal products, fermented foods, or supplementation to reach optimal levels.
Does vitamin K absorption improve when taken with food or fat?
Yes, vitamin K is a fat-soluble nutrient, so taking it with a meal containing dietary fat significantly enhances its absorption and bioavailability. Studies show that consuming full-spectrum vitamin K with foods rich in healthy fats—such as olive oil, nuts, or fatty fish—can increase absorption by up to 2-3 times compared to taking it on an empty stomach. This makes mealtime the optimal window for supplementing with vitamin K formulas.
Who benefits most from full-spectrum vitamin K supplementation?
Full-spectrum vitamin K is particularly beneficial for older adults at risk of osteoporosis, individuals with cardiovascular concerns, and those following low-fat or plant-based diets that may lack adequate MK-4 and MK-7 intake. People with malabsorption disorders (such as celiac disease or IBS) may also benefit, as these conditions impair fat-soluble nutrient absorption. Additionally, those seeking cognitive support or enhanced wound healing can benefit from comprehensive vitamin K intake across all three forms.
Explore the Full Encyclopedia
7,400+ ingredients researched, verified, and formulated for optimal synergy.
Browse IngredientsThese statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.
hermetica-encyclopedia-canary-zzqv9k4w full-spectrum-vitamin-k-k1-mk-4-mk-7 curated by Hermetica Superfoods at ingredients.hermeticasuperfoods.com and licensed CC BY-NC-SA 4.0 (non-commercial share-alike, attribution required)
