You have heard that vitamin K2 is vital for directing calcium to your bones and away from your arteries. But when you browse Amazon, two names keep popping up: Doctor’s Best Natural Vitamin K2 MK7 and Sports Research Vitamin K2 (MK-7). Both are well-regarded, both use the superior MK7 form, and both come from fermented chickpeas. So how do you choose? In this comparison, we examine the differences in formulation, serving size, purity, and value so you can pick the right K2 for your routine. If you are also curious about combining K2 with vitamin D3, check out our sports research D3 K2 vs NOW D3 K2.
Pros
- Highly bioavailable MenaQ7 form for optimal absorption and efficacy
- Vegan and free from common allergens like gluten and soy
- Supports both bone health and soft tissue integrity
- Convenient once-daily dosage with 60 capsules per bottle
- From a trusted brand with a long history of scientific commitment
Cons
- Some users may prefer a different dosage strength per capsule
- No user reviews available yet to provide real-world feedback
- Slightly higher price point compared to some generic vitamin K2 supplements
Doctor's BEST Natural Vitamin K2 MK7 Supplement with MenaQ7 is a high-quality dietary supplement designed to support bone health and calcium metabolism. It is ideal for adults looking to maintain strong bones and healthy soft tissues, especially those following a vegan or allergen-free lifestyle.
The standout feature of this supplement is its use of MenaQ7, a bioavailable form of vitamin K2 derived from fermented chickpeas. This form is absorbed more completely and stays in the body longer than other vitamin K varieties, delivering sustained benefits for bone density and cardiovascular health. Real-world performance is backed by the brand's 35-year commitment to scientifically tested supplements.
The product comes in a simple, recyclable bottle with 60 vegan capsules. Each capsule provides 100 mcg of vitamin K2 MK7, and the formula is non-GMO, gluten free, soy free, and vegan. Doctor's Best emphasizes rigorous testing and clinical approval, ensuring a trustworthy build quality for daily use.
One potential drawback is the lack of user reviews at the time of writing, which makes it hard to gauge individual experiences. Additionally, the dosage is fixed at 100 mcg per capsule, which may not suit those seeking a higher or lower intake. However, for most users following standard recommendations, this is a solid choice.
Overall, Doctor's BEST Vitamin K2 MK7 Supplement delivers on its promise of effective bone and soft tissue support through a premium, bioavailable ingredient. It is a reliable option for health-conscious consumers who value quality sourcing and transparent manufacturing. Combined with a balanced diet, this supplement can be a valuable addition to a daily wellness routine.
Pros
- Superior MK-7 form remains active longer in the bloodstream than MK-4 or vitamin K1
- Sourced from fermented chickpeas, making it suitable for those avoiding soy allergens
- Added coconut MCT oil supports proper absorption without needing dietary fat
- High-quality manufacturing with third-party testing and clean label certifications
Cons
- Dosage of 100mcg may be lower than some therapeutic protocols recommend
- No customer reviews available yet to gauge real-world experiences
- Softgel capsule may emit a faint natural odor from the MCT oil
Sports Research Vitamin K2 (MK-7) is a plant-powered supplement designed to support bone health by directing calcium to where it matters most. It's an excellent choice for vegans, those with soy sensitivities, or anyone seeking a clean, non-GMO K2 formula to complement their daily regimen.
The standout feature is its use of 100mcg of menaquinone-7 (MK-7), the most bioavailable form of vitamin K2. Sourced from fermented chickpeas rather than soy, it remains active in the bloodstream longer than MK-4 or vitamin K1, making it more effective for bone and cardiovascular support.
The vegan softgels are encapsulated in a carrageenan-free Plantgel shell and include coconut MCT oil to boost fat absorption. A UV-protecting color barrier helps preserve potency. The supplement is third-party tested, Non-GMO Project Verified, and free from gluten, soy, and artificial fillers.
A minor drawback is the lack of customer reviews, which limits real-world feedback. Also, the 100mcg dosage may be insufficient for those requiring higher levels, though it meets standard dietary needs. Some users might notice a slight natural scent from the MCT oil.
Overall, Sports Research delivers a high-quality, thoughtfully formulated K2 supplement that prioritizes purity and effectiveness. If you value clean ingredients and plant-based nutrition, this is a reliable choice for supporting long-term bone health.
Brand: Sports Research
Form: Vegan Softgel
Dosage: 100mcg Vitamin K2 (as MK-7) per softgel
Servings: 120 count (120-day supply at 1 softgel daily)
Other Ingredients: Coconut MCT oil, fermented chickpea extract, Plantgel capsule (modified tapioca starch, glycerin, purified water)
Certifications: Vegan Certified, Non-GMO Project Verified, gluten-free, soy-free
Manufacturing: Third-party tested; produced in a cGMP-compliant facility in the USA
Dimensions: 2.5 x 2.5 x 3.75 inches; 0.18 pounds
Pros
- Vegan-friendly formulation using lichen-derived D3 and fermented chickpea K2.
- Includes coconut MCT oil to enhance absorption of fat-soluble vitamins.
- Third-party tested and certified Non-GMO and Vegan.
- Convenient once-daily dosage with high potency (5000 IU D3, 100 mcg K2).
- Free from common allergens like gluten and soy.
Cons
- Price is higher than some synthetic D3+K2 supplements.
- Softgel size may be large for those who have difficulty swallowing pills.
- 5000 IU D3 may be too high for individuals with certain health conditions; consult a healthcare provider.
Sports Research Vegan Vitamin D3 + K2 combines two essential fat-soluble vitamins in a plant-based softgel. This formula is designed for vegans and anyone seeking a clean, high-quality supplement that supports bone density, immune function, and cardiovascular health.
The standout feature is the sourcing: vitamin D3 comes from lichen (a vegan alternative to lanolin), and vitamin K2 (as MK-7) is derived from fermented chickpeas. The addition of coconut MCT oil aids absorption, making these nutrients more bioavailable. Each softgel provides 5000 IU of D3 and 100 mcg of K2, a potent once-daily dose.
In terms of quality, Sports Research has third-party tested each batch and earned Vegan and Non-GMO certifications. The softgels are free from gluten, soy, carrageenan, and artificial fillers. The product is manufactured in a cGMP-compliant facility in the USA.
A potential drawback is the cost, which is higher than many synthetic D3+K2 supplements. Also, the 5000 IU D3 dose may be excessive for those with lower requirements. The softgel size is average but may still be challenging for some users.
Overall, this is an excellent choice for vegans and health-conscious individuals who want a transparent, plant-based D3+K2 supplement. It delivers clinical-strength dosing with clean ingredients, making it a reliable addition to a daily wellness routine.
Color: No Color
Size: 120 Count (Pack of 1)
Dimensions: 2.4 x 2.13 x 4.2 inches
Weight: 0.18 pounds
Product Group: Drugstore
Binding: Health and Beauty
Pros
- High potency 5000 IU D3 plus 120 mcg K2 in a single serving
- Liquid sublingual formulation for superior absorption and quick action
- USDA organic certification and third-party tested for purity
- Vegan, non-GMO, soy-free, gluten-free, and additive-free
- Made in the USA in a certified facility
Cons
- Liquid may need refrigeration after opening to maintain freshness
- Slight natural taste from the oil base may not appeal to everyone
- Bottle size is relatively small for the price compared to some bulk supplements
Triquetra Health Organic Plant D3 + K2 is a premium dietary supplement designed for those seeking a plant-based, highly absorbable source of vitamin D3 and K2. The formula combines 5000 IU of organic vitamin D3 from algae with 120 mcg of all-trans MK7 from MenaQ7, the gold standard for bioactive vitamin K2. This liquid sublingual drop is ideal for vegans and anyone wanting to avoid synthetic or animal-derived nutrients.
The standout feature is the use of all-trans MK7, which is the 100% bioactive form of vitamin K2. Many supplements contain a mix of cis isomers that are less effective, but MenaQ7 ensures your body can readily activate K2-dependent proteins for calcium regulation. Combined with the liquid delivery system that boasts up to 300% higher absorption than capsules, this product offers exceptional bioavailability.
Build quality is excellent, with USDA organic certification and third-party testing for over 100 toxins and microbes. The ingredients are non-GMO, soy-free, gluten-free, and free of artificial preservatives. The small 1 fl oz bottle is easy to travel with, but the dropper design may require careful handling to avoid spills. The natural oil base has a mild flavor that most users find acceptable.
One potential drawback is the need to refrigerate the liquid after opening to maintain potency, which may be inconvenient for some. Additionally, the price per serving is slightly higher than generic capsule alternatives, though the superior absorption and organic certification justify the cost for those prioritizing quality.
Overall, Triquetra Health Organic Plant D3 + K2 is an excellent choice for health-conscious individuals, particularly vegans and those with absorption concerns. It delivers a potent, clean, and effective combination of essential vitamins backed by rigorous testing. Highly recommended for supporting immune function, bone density, and cardiovascular health.
Pros
- Uses MK-7, which stays in the bloodstream longer and shows greater bioactivity than MK-4 or Vitamin K1.
- Vegan and carrageenan-free formula, suitable for those with dietary restrictions.
- Third-party tested for quality, ensuring reliable dosage and safety.
- Small, easy-to-swallow softgels with a mild, pleasant taste.
- Coconut MCT oil aids in absorption, making it more effective than some competitors.
Cons
- The 60-count bottle provides a two-month supply, which may be less economical than larger sizes.
- Some users may find the price point higher than basic Vitamin K2 supplements, though justified by quality.
- Limited to 100mcg per serving, which might not be sufficient for those requiring higher dosages as advised by a healthcare provider.
Sports Research Vitamin K2 MK-7 Plantgels is a premium supplement designed to support bone health and cardiovascular function. It's particularly suited for individuals who follow a vegan or vegetarian diet, as well as those who prefer supplements free from common allergens like soy and gluten. The product is ideal for anyone looking to enhance calcium utilization and maintain strong bones as they age.
The standout feature is the use of MK-7, a form of vitamin K2 known for its superior bioavailability and longer half-life in the bloodstream compared to MK-4 or Vitamin K1. The addition of coconut MCT oil ensures optimal absorption, making each 100mcg dose effective. Users report improved joint comfort and overall bone strength with regular use, though individual results may vary.
Design and build quality are impressive. The Plantgels are made from a vegan, carrageenan-free formula, and the inclusion of a UV-protecting color barrier helps preserve the nutrient's integrity. The softgels are small, easy to swallow, and have no aftertaste, which is a plus for those who dislike large capsules. The packaging is sturdy and informative, with clear labeling.
One potential drawback is the modest serving size; each bottle lasts 60 days, which may not be cost-effective for long-term use. Additionally, while the price is justified by the quality, it may be higher than basic vitamin K2 supplements. However, for those prioritizing clean, third-party tested ingredients, this is a worthy investment.
Overall, Sports Research delivers a high-quality vitamin K2 supplement that meets its claims. It's a reliable choice for vegans, health-conscious individuals, and anyone seeking to support their skeletal and cardiovascular systems. I would recommend it to those willing to pay a premium for a clean, effective product.
Brand: Sports Research
Model: Vitamin K2 as MK-7
Form: Plantgel (vegan softgel)
Serving Size: 1 softgel
Servings per Container: 60
Dosage per Serving: 100mcg
Other Ingredients: Coconut MCT oil, Plantgel capsule (derived from fermented chickpeas), UV-protecting color barrier
Allergen Information: Free from soy, gluten, carrageenan, and animal products
Certifications: Vegan Certified, Non-GMO Project Verified
Manufacturing: Made in the USA in a cGMP-compliant facility, third-party tested
When choosing a Vitamin K2 supplement, consider the form of K2. MK-7 is more bioavailable and longer-lasting than MK-4, making it a preferred choice for daily use. Look for products that include a fat source (like MCT oil) to enhance absorption, as K2 is fat-soluble.
If you're vegan or have food sensitivities, opt for plant-based capsules free from soy and gluten. This Sports Research product excels in this area, using fermented chickpeas and coconut oil.
Check for third-party testing and certifications like Non-GMO Project Verified to ensure purity and potency. Also, consider the dosage; 100mcg is a common dose, but consult your healthcare provider for individual needs, especially if you take blood thinners or have clotting disorders.
Finally, evaluate the value. While this product is higher-priced, the quality and clean formulation justify the cost for many users. Compare with other brands to find a balance between budget and efficacy.
Buying Guide for Vitamin K2 MK7
Form and Bioavailability
Vitamin K2 comes in several forms: MK4 and MK7. MK7 is the preferred form because it stays active in the blood longer and requires only one daily dose. Both Doctor’s Best and Sports Research use MK7 sourced from fermented chickpeas. Doctor’s Best uses the patented MenaQ7 brand, which has been clinically studied for bone and cardiovascular support. Sports Research also uses fermented chickpeas but adds coconut MCT oil to enhance absorption, as K2 is fat-soluble.
Serving Size and Value
Doctor’s Best offers 60 veg caps per bottle, each providing 100 mcg of MK7, with a suggested use of one capsule daily. Sports Research provides 120 softgels per bottle, also 100 mcg each. Both are one-a-day. If you care about longevity per bottle, Sports Research gives a two-month supply versus one month from Doctor’s Best. However, Doctor’s Best is often more affordable upfront. For budget-conscious buyers, the Doctor’s Best option may be appealing. If you prefer a longer supply and added absorption support, Sports Research stands out. For a similar comparison of value in other supplements, see our magnesium taurate vs thorne magnesium bisglycinate article.
Quality and Purity
Both brands prioritize clean ingredients. Doctor’s Best is non-GMO, gluten free, soy free, and vegan. Sports Research goes a step further with Vegan Certified, Non-GMO Project Verified, and free of carrageenan, gluten, and soy. Sports Research also uses a UV-protecting color barrier to prevent light degradation of the K2. Doctor’s Best relies on the established quality of MenaQ7. Both are manufactured in the USA in facilities that follow strict guidelines. For more on how purity affects supplement choices, read supplements for healthy blood flow.
Additional Formulations: D3+K2 Combos
If you want to cover two bases at once, Sports Research offers a Vegan Vitamin D3 + K2 formula in both 60-count and 120-count sizes. These combine 125 mcg (5000 IU) of vegan D3 with 100 mcg of K2 MK7, plus coconut MCT oil. This is an excellent option if you also need vitamin D for immune support and calcium absorption. Doctor’s Best does not currently offer a D3+K2 combo in this lineup. If you are interested in other D3+K2 comparisons, see our sports research D3 K2 vs thorne D K2 article.
Final Thoughts
Both the Doctor’s BEST Natural Vitamin K2 MK7 Supplement and the Sports Research® Vitamin K2 (MK-7) deliver high-quality MK7 from fermented chickpeas. For a straightforward, budget-friendly K2 that is vegan and trusted, Doctor’s Best is a smart choice. If you prefer a longer supply, added MCT oil for absorption, and a stronger vegan certification, the Sports Research option wins. And if you want both D3 and K2 in one daily softgel, the Sports Research D3+K2 combos are worth considering. Whatever you choose, consistent daily intake alongside a source of fat will help you get the most from your K2 supplement.
Frequently Asked Questions
What is the difference between MK7 and MK4?
MK7 (menaquinone-7) is a longer-chain form of vitamin K2 that stays in the body longer than MK4, meaning you only need one daily dose. MK4 is shorter-lived and often requires multiple doses per day. Most studies on bone and heart health use MK7.
Can I take K2 with vitamin D3?
Yes, vitamins D3 and K2 work together synergistically. D3 helps absorb calcium, and K2 directs that calcium to your bones and teeth. Many supplements now combine them, like the Sports Research D3+K2 formula. You can also take them separately.
How long does it take to see benefits from K2 MK7?
Benefits for bone density and arterial flexibility typically become noticeable after several weeks to a few months of consistent use. Since MK7 has a long half-life, daily supplementation builds up levels over time.
Are these K2 supplements safe for vegans?
Yes, both Doctor’s Best and Sports Research source their K2 from fermented chickpeas and use vegan capsules. Sports Research also uses a plant-based softgel (Plantgel) and avoids carrageenan. Check the label to confirm your dietary requirements.
