Choosing a reliable vitamin D3 and K2 combo can support bone density, arterial health, and overall immune function. Below are five leading K2 MK-7 with D3 products, highlighting how each supports calcium metabolism, bone strength, and cardiovascular wellness. This guide compares potency, delivery form, and notable features to help informed decisions.
| Product | Key Benefit | Form | Serving Size |
|---|---|---|---|
| Doctors Best Natural Vitamin K2 MK-7 Plus D3 | Artery, bone, and tissue support with enhanced bioavailability | Veggie caps (MK-7 + D3) | 1 capsule |
| NOW Supplements Mega D-3 & MK-7 | Bone and cardiovascular health with D3 and K2 synergy | Capsules | 1 softgel |
| Sports Research Vitamin D3 + K2 | Immune support and proper calcium metabolism | Softgels | 1 softgel |
| Bronson Vitamin K2 (MK7) with D3 | Maximized calcium distribution to bones, non-GMO & gluten-free | Capsules | 1 capsule |
| Dr. Berg Maximum Strength D3 K2 | Enhanced absorption with cofactors and MCT support | Capsules | 1 capsule |
Doctors Best Natural Vitamin K2 MK-7 Plus D3

Doctors Best combines Vitamin K2 MK-7 with D3 to support tissue, artery, and bone health. The product emphasizes enhanced bioavailability through MenaQ7 MK-7 and provides D3 to aid calcium utilization. This 2-in-1 formula aims to help maintain healthy bone density while supporting vascular health. The capsule count is sufficient for ongoing use, and the product is Non-GMO, gluten free, soy free, and vegetarian-friendly.
Doctor’s Best Vitamin D3 + K2 (MK-7)

This Doctor’s Best formulation presents a D3 and K2 MK-7 combination designed to support bone and arterial health, along with calcium utilization. The listing emphasizes that Vitamin K2 works with Vitamin D3 to optimize calcium metabolism and overall cardiovascular benefit. It is suitable for vegetarians and carries a Non-GMO, gluten-free, and soy-free profile.
NOW Supplements Mega D-3 & MK-7

NOW Supplements Mega D-3 & MK-7 pairs 5000 IU of Vitamin D3 with 180 mcg of Vitamin K2 (MK-7). The blend emphasizes bone and cardiovascular support, highlighting how D3 aids calcium absorption and K2 directs calcium to bones and away from arteries. The product is non-GMO, gluten-free, and vegetarian-friendly, with a focus on reliable bioavailability and immune support through D3 activity.
Sports Research Vitamin D3 + K2

Sports Research offers a D3 + K2 formula with vegan D3 sourced from lichen and K2 as MK-7 from fermented chickpeas, suspended in coconut MCT oil for absorption. Each softgel delivers 125 mcg D3 and 100 mcg K2 MK-7 in a single daily dose. The product emphasizes vegan-friendly sourcing and a straightforward daily regimen for bone, immune, and cardiovascular health.
Micro Ingredients Vitamin D3 + K2 MK-7

Micro Ingredients provides a potent 2-in-1 formula with 10,000 IU of Vitamin D3 and 200 mcg of Vitamin K2 MK-7 per serving, delivered in coconut oil-infused mini softgels. The high-dose D3 with MK-7 aims to support immune function, calcium metabolism, and bone health. The product emphasizes non-GMO and gluten-free attributes, and high absorption through a fat-based carrier.
Bronson Vitamin K2 (MK7) with D3

Bronson combines Vitamin K2 MK-7 with Vitamin D3 in a non-GMO, gluten-free, and soy-free formulation. The product highlights the synergy between K2 and D3 for proper calcium distribution to bones and supporting arterial health. The complex is designed to be easy to swallow and suitable for those who want a straightforward K2-D3 pairing with quality testing in a New York-based facility.
Dr. Berg Maximum Strength 2-in-1 D3 K2

Dr. Berg’s Maximum Strength formula includes 5000 IU of Vitamin D3 and 50 mcg of Vitamin K2, with cofactors such as magnesium, B6, zinc, and MCT oil to enhance absorption. The product emphasizes enhanced bioavailability and the inclusion of absorption-boosting components, offering a comprehensive D3 + K2 supplement with an emphasis on effective utilization of vitamins D3 and K2 in the body.
Buying Guide: Key Considerations And Comparisons
- Form and source: D3 is often derived from lanolin or lichen (vegan) sources; K2 MK-7 is commonly VItamin K2 as MK-7. Check for vegan-friendly and non-GMO labels if needed.
- Potency and ratio: Typical doses pair around 5000 IU D3 with 100-200 mcg K2 MK-7 per serving. Higher D3 doses require monitoring, especially if taking other vitamin A or calcium supplements.
- Bioavailability: Look for vitamin K2 MK-7 for longer half-life and better arterial health support; D3 is fat-soluble, so products with a carrier fat (like coconut oil) may enhance absorption.
- Avoid allergens: If soy-free or gluten-free is important, verify labels. Some MK-7 sources derive from soy; others provide soy-free formulations.
- Form factor: Veggie capsules or softgels can influence digestion and preference. Plant-based capsules often appeal to vegetarians and those with dietary restrictions.
- Additional cofactors: Some formulas include magnesium, zinc, B vitamins, or MCT oil to aid absorption and utilization. Consider these for a broader nutrient blend.
- Third-party testing: Seek products with external testing or certifications to verify potency and purity, especially for sensitive populations.
- Use case alignment: For bone density support or cardiovascular goals, match product claims to personal health objectives and consult a healthcare professional if needed.
- Budget and servings: Compare price per serving, not just bottle price, to determine long-term value and ensure consistency with daily intake goals.
- Dietary preferences: If you follow a vegan or vegetarian diet, prioritize vegan D3 sources and MK-7 that avoid animal-derived ingredients.