Vitamin K2 (MK-7) 100 mcg + Vitamin D3 125 mcg (5,000 IU) — Vegetarian Capsules — Bone & Cardiovascular Support*
High-potency synergy: Vitamin K2 (MK-7, 100 mcg) + Vitamin D3 (125 mcg / 5,000 IU) to support bone density, calcium balance, and cardiovascular health. MK-7 activates vitamin-K–dependent proteins (osteocalcin, MGP) to direct calcium to bones & teeth while helping maintain arterial elasticity; D3 supports intestinal calcium absorption and immune function. Produced in FDA-registered, GMP-certified facilities and 3rd-party tested for identity, potency & purity. If you use blood-thinning medications, consult your healthcare professional.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from leading health organizations and insights from top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits
✓ Arterial elasticity / vascular health (MK-7) — 3-year double-blind RCT in healthy postmenopausal women: MK-7 improved pulse-wave velocity and helped maintain arterial elasticity vs placebo.
NIH/PubMed — Knapen, 2015
✓ Bone quality parameters (MK-7) — 3-year RCT: MK-7 supported bone strength indices and attenuated age-related bone loss in postmenopausal women.
NIH/PubMed — Knapen, 2013
✓ Vitamin-K–status & vascular calcification markers — Human trials show MK-7 lowers dp-ucMGP (inactive MGP), a biomarker linked with vascular stiffness/calcification.
NIH/PubMed — Theuwissen, 2012
✓ Immune support (D3; greatest when deficient) — Individual-participant meta-analysis: vitamin D supplementation reduced acute respiratory infection risk, with the largest benefit in those with low baseline D.
NIH/PubMed — Martineau, 2017
Additional / Promising Evidence
✓ Vascular markers in metabolic settings (MK-7) — Double-blind human trials report MK-7 improves vitamin-K–status markers (dp-ucMGP) over 12 weeks to 1 year.
NIH/PubMed — Vossen, 2023
✓ Dental/craniofacial mineralization (K-dependent proteins) — Human-focused evidence links K-activated proteins with tooth mineralization; interventional data are emerging.
NIH/PubMed — Maresz, 2020
✓ Falls & muscle function (D3; mixed) — Reviews show context-dependent effects (benefit most likely in deficient older adults).
NIH/PubMed — Gillespie, 2011
University / Academic Context
✓ Maastricht University (Netherlands) — Vascular elasticity (MK-7) — 3-year RCT showed improvements in carotid–femoral pulse-wave velocity and dp-ucMGP reduction vs placebo.
NIH/PubMed — Knapen, 2015
✓ Maastricht University — Bone strength indices (MK-7) — 3-year RCT: MK-7 attenuated age-related decline in bone quality measures.
NIH/PubMed — Knapen, 2013
✓ Erasmus University (Rotterdam Study) — CHD & aortic calcification (dietary K2) — Prospective cohort linked higher K2 intake with lower CHD risk and less aortic calcification.
NIH/PubMed — Geleijnse, 2004
Global Evidence & Reviews
✓ NIH ODS — Vitamins K & D — Health-professional monographs on roles, intakes, interactions, and safety.
NIH/ODS — Vitamin K
✓ Balanced context (concise, non-scary) — Evidence is strongest for D3 when deficient and for MK-7 effects on K-dependent markers (dp-ucMGP) and arterial stiffness in select adult groups; follow clinician guidance if using anticoagulants.
NIH/NCCIH — Vitamin D
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
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Vitamin K2 (MK-7) — Activates osteocalcin and matrix Gla protein (MGP) to support bone mineralization and vascular elasticity. (NIH/ODS — Vitamin K)
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Vitamin D3 — Supports intestinal calcium absorption and immune function; benefits are strongest when levels are low. (NIH/ODS — Vitamin D)
Brief Benefit Bullets
- Supports bone mineralization (MK-7 activates osteocalcin)*
- Supports cardiovascular health & arterial elasticity (MGP activation)*
- Helps direct calcium to bones & teeth (away from soft tissues)*
- 5,000 IU D3 supports immune function (benefit strongest when low)*
- Vegetarian capsules; 3rd-party lab tested for identity, potency & purity
Suggested Use
Take 1 vegetarian capsule daily with a meal containing healthy fats for absorption. If you take blood-thinning medications or have a medical condition, consult your healthcare professional.*
Product Specifications
• Serving Size — 1 Vegetarian Capsule
• Actives — Vitamin K2 (MK-7) 100 mcg; Vitamin D3 125 mcg (5,000 IU)
• Form — Vegetarian Capsules
• Free From — Non-GMO, gluten-free; no artificial colors*
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Vitamin K2 (MK-7) + D3 vegetarian capsules for bone density, calcium balance & arterial elasticity — Clinically Studied Ingredients — NIH/PubMed!*
