Vitamin K2 MK-7 (Menaquinone-7) 180 mcg
Carlson
Vitamin K2 MK-7 (Menaquinone-7) 180 mcg
4.8
★ ★ ★ ★ ★
(178 ratings)
Vitamin K 180 mcg
Score 85.0
A high-quality, high-dose Vitamin K2 MK-7 supplement from a trusted brand, providing excellent support for bone and cardiovascular health, albeit at a premium price point per serving.
Quantity: 180 Softgel(s)Servings size: 2 Softgel(s) (90 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 85.0
A high-quality, high-dose Vitamin K2 MK-7 supplement from a trusted brand, providing excellent support for bone and cardiovascular health, albeit at a premium price point per serving.
Quantity: 90Dose: K:90mcg, Quantity: 60Dose: K:90mcg, Quantity: 120Dose: K:45mcg, Quantity: 90Dose: K:45mcg, Quantity: 180
insights Analysis
Carlson's Vitamin K2 MK-7 (Menaquinone-7) delivers a robust 180mcg dose, which is considered optimal for adults seeking comprehensive bone and cardiovascular support. As a reputable brand, Carlson generally inspires trust in its product quality. Nutritionists frequently recommend MK-7 due to its extended half-life and superior bioavailability, ensuring sustained activity within the body. While its price per serving is higher than some mass-market alternatives, the effective dosage and brand reputation for quality likely appeal to consumers prioritizing potency and reliability for their health goals.
- Contains an optimal and high dose (180mcg) of Vitamin K2 as Menaquinone-7, highly effective for adults.
- Utilizes the most bioavailable form of K2 (MK-7) for systemic benefits.
- From Carlson, a reputable brand known for supplement quality.
- Provides sustained activity due to MK-7's long half-life.
- Higher price per serving (60 cents) compared to many other K2 options.
- Fewer online reviews compared to more widely available or budget-friendly brands.
- Does not include Vitamin D3, which often synergizes with K2 for bone and cardiovascular benefits.
$54.74($0.60 per serving)
 iHerb | $ 54.74 |
bolt Effectiveness for goals
Vitamin K is essential for proper blood clotting and plays a significant role in bone metabolism. It helps the body produce proteins necessary for these vital bodily functions.
Vitamin K activates proteins such as osteocalcin, which are crucial for incorporating calcium into the bone matrix. This mechanism supports bone mineralization and helps maintain bone density.
Vitamin K1 (phylloquinone) is primarily effective for blood coagulation and is abundant in green leafy vegetables. Vitamin K2 (menaquinones) is more involved in bone and cardiovascular health, found in fermented foods and animal products, and has different bioavailabilities.
Emerging research suggests that Vitamin K, particularly K2, may help prevent arterial calcification by activating matrix Gla protein. This protein helps inhibit calcium deposition in soft tissues, supporting arterial flexibility.
Vitamin K works synergistically with calcium by helping to direct calcium to the bones and away from soft tissues like arteries. It activates proteins like osteocalcin for bone binding and matrix Gla protein to inhibit soft tissue calcification.
schedule Dosage, timing & forms
Recommended dosages for Vitamin K vary by age and form (K1 vs K2). For adults, the Adequate Intake (AI) for Vitamin K is 120 mcg per day for men and 90 mcg per day for women. Specific supplemental dosages may differ depending on individual needs and health goals.
Yes, dosages can differ between Vitamin K1 and K2 due to their varying potencies and half-lives. While K1 is measured in micrograms (mcg) for general intake, K2 (especially MK-7) may be effective at lower microgram doses due to its longer half-life. It's important to check the specific form and dosage on the supplement label.
Yes, Vitamin K is a fat-soluble vitamin, meaning it is best absorbed when taken with a meal containing some dietary fat. This helps facilitate its absorption into the body.
The two main forms of Vitamin K found in supplements are Vitamin K1 (phylloquinone) and Vitamin K2 (menaquinone). Vitamin K2 further has various subtypes, with MK-4 and MK-7 being the most common in supplements. Each form may have distinct roles and bioavailability.
There is no established Upper Limit (UL) for Vitamin K from food or supplements, as toxicity is rare. However, high doses of synthetic Vitamin K (menadione, K3) can be toxic, though this form is not typically found in supplements. Always adhere to recommended dosages and consult a healthcare provider if you have concerns.
health_and_safety Safety & interactions
Vitamin K plays a crucial role in blood clotting, which is the opposite effect of anticoagulant medications such as warfarin. Consuming inconsistent amounts of Vitamin K can alter warfarin's effectiveness, potentially making the blood thinner less effective or increasing bleeding risk. Individuals taking warfarin should maintain a consistent intake of Vitamin K and consult their healthcare provider.
Individuals taking anticoagulant medications like warfarin should consult their doctor before taking Vitamin K supplements due to potential interactions. People with certain liver conditions or those with a G6PD deficiency should also seek medical advice before supplementation. Always discuss new supplements with a healthcare provider.
Vitamin K supplements are generally considered safe for most healthy individuals when taken at recommended dosages. Side effects are uncommon but can include upset stomach, diarrhea, or allergic reactions in sensitive individuals. High doses of synthetic Vitamin K (menadione, K3) can be toxic, but this form is rarely used in supplements.
Vitamin K is essential during pregnancy and breastfeeding, and adequate intake is important for both mother and child. However, supplementation during these periods should only be undertaken under the guidance of a healthcare professional. High doses are generally not recommended without specific medical advice.
There is currently no established Tolerable Upper Intake Level (UL) for Vitamin K from food or supplements due to its low potential for toxicity. However, excessive intake, especially of synthetic forms, could potentially have adverse effects. It is always best to adhere to recommended dosages on supplement labels or as advised by a healthcare professional.
Ingredients
| Ingredient | Amount per serving |
|---|---|
| Vitamin K2 (Menaquinone-7) | 180 mcg |
Categories
Vitamin K 90.0
This product excels in the Vitamin K category by providing a high, therapeutically relevant dose of the most bioavailable form, MK-7, from a trusted manufacturer.
Goals
Bone Health 95.0
The 180mcg of K2 MK-7 is an optimal adult dose, exceptionally effective in activating osteocalcin to direct calcium to bones, thereby strongly supporting bone density and strength.
Heart Health 95.0
This significant dose of K2 MK-7 is excellent for activating Matrix Gla Protein, a critical factor in preventing arterial calcification, thereby promoting arterial flexibility and robust heart health.
By offering 180mcg of MK-7, this supplement strongly supports arterial health and overall cardiovascular function by inhibiting calcium deposition in blood vessels, a key factor in long-term vascular integrity.
Recommended Alternatives
95 Value 
Vitamin K2 100 mcg + Vitamin D3 125 mcg
Nutricost
4.8
★★★★★
(2111 ratings)
Offers a very respectable dose of K2 MK-7 combined with Vitamin D3, two synergistic nutrients crucial for bone and heart health, at an exceptionally competitive price point per serving (12 cents), providing outstanding value.
92 Value 
Vitamin K2 (as Menaquinone-7)
Lake Avenue Nutrition
4.8
★★★★★
(7609 ratings)
This product provides a good maintenance dose of bioavailable K2 MK-7 at an almost unparalleled low price per serving (7 cents), making it an excellent choice for long-term, cost-effective supplementation.
80 Value 
Prenatal Blend
Super Nutrition
4.5
★★★★★
(1930 ratings)
Offers a good dose of K2 (85mcg, likely MK-7 given the branding for K2) at a competitive price for a product that often contains other prenatal nutrients, providing solid K2 support as part of a multi-benefit supplement.
98 Performance 
ADK Vitamins
Codeage
4.8
★★★★★
(1294 ratings)
This product offers an extremely potent dose of K2 MK-7 (1800mcg), combined with optimal Vitamin A and D doses, providing a comprehensive and powerful solution for those requiring maximum bone and cardiovascular support.
90 Performance 
Super K
Life Extension
4.7
★★★★★
(11302 ratings)
Contains a very high total Vitamin K (2600mcg), often a blend of K1 and various K2 forms (implied from Life Extension's usual formulations), providing broad-spectrum K support at a competitive price.
92 Performance 
Once-Daily Health Booster
Life Extension
4.5
★★★★★
(939 ratings)
This is a premium multi-nutrient blend including an exceptionally high dose of Vitamin K (3735mcg), likely a mix of forms, designed for comprehensive health optimization beyond single vitamin focus.
90 Budget
Vitamin K2 100 mcg + Vitamin D3 125 mcg
Nutricost
4.8
★★★★★
(2111 ratings)
Offers a substantial dose of K2 MK-7 (100mcg) and includes D3, all at a significantly lower price per serving (12 cents vs 60 cents), making it a much more economical choice for comprehensive support.
85 Budget
Vitamin K2 (as Menaquinone-7)
Lake Avenue Nutrition
4.8
★★★★★
(7609 ratings)
While a lower dose of K2 MK-7 (50mcg) than Carlson, it is still effective for maintenance and incredibly cost-effective at just 7 cents per serving, offering exceptional value for pure MK-7.
60 Budget 
Vitamin K-2 100 mcg
NOW
4.8
★★★★★
(13824 ratings)
Provides 100mcg of Vitamin K2, albeit as MK-4, for a very low price per serving (9 cents), making it a budget-friendly K2 option, though less preferred than MK-7 for systemic action.
95 Value
Vitamin K2 100 mcg + Vitamin D3 125 mcg
Nutricost
4.8
★★★★★
(2111 ratings)
Offers a very respectable dose of K2 MK-7 combined with Vitamin D3, two synergistic nutrients crucial for bone and heart health, at an exceptionally competitive price point per serving (12 cents), providing outstanding value.
92 Value
Vitamin K2 (as Menaquinone-7)
Lake Avenue Nutrition
4.8
★★★★★
(7609 ratings)
This product provides a good maintenance dose of bioavailable K2 MK-7 at an almost unparalleled low price per serving (7 cents), making it an excellent choice for long-term, cost-effective supplementation.
80 Value
Prenatal Blend
Super Nutrition
4.5
★★★★★
(1930 ratings)
Offers a good dose of K2 (85mcg, likely MK-7 given the branding for K2) at a competitive price for a product that often contains other prenatal nutrients, providing solid K2 support as part of a multi-benefit supplement.
98 Performance
ADK Vitamins
Codeage
4.8
★★★★★
(1294 ratings)
This product offers an extremely potent dose of K2 MK-7 (1800mcg), combined with optimal Vitamin A and D doses, providing a comprehensive and powerful solution for those requiring maximum bone and cardiovascular support.
90 Performance
Super K
Life Extension
4.7
★★★★★
(11302 ratings)
Contains a very high total Vitamin K (2600mcg), often a blend of K1 and various K2 forms (implied from Life Extension's usual formulations), providing broad-spectrum K support at a competitive price.
92 Performance
Once-Daily Health Booster
Life Extension
4.5
★★★★★
(939 ratings)
This is a premium multi-nutrient blend including an exceptionally high dose of Vitamin K (3735mcg), likely a mix of forms, designed for comprehensive health optimization beyond single vitamin focus.