Natural Vitamin K2 MK-7 with MenaQ7 45 mcg
Doctor's Best
Natural Vitamin K2 MK-7 with MenaQ7 45 mcg
4.8
★ ★ ★ ★ ★
(8007 ratings)
Vitamin K 45 mcg
Score 85.0
A high-quality, effective MK-7 (MenaQ7) Vitamin K2 supplement ideal for comprehensive bone and heart health support.
Quantity: 180 Veggie Cap(s)Servings size: 1 Veggie Capsule(s) (180 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 85.0
A high-quality, effective MK-7 (MenaQ7) Vitamin K2 supplement ideal for comprehensive bone and heart health support.
insights Analysis
This product features Menaquinone-7 (MK-7) in the form of MenaQ7, which is widely regarded by nutritionists and scientific research as the most effective form of Vitamin K2 for bone and cardiovascular health due to its superior bioavailability and long half-life in the body. The 45mcg dosage is a clinically relevant amount for general maintenance and prevention. Online reviews consistently highlight positive experiences, particularly regarding its efficacy and the trusted MenaQ7 source. The larger serving size offers good value for consistent daily use.
- Contains Menaquinone-7 (MK-7) with MenaQ7, a highly bioavailable and well-researched form of K2.
- MK-7 has a long half-life, providing sustained benefits for bone and cardiovascular health.
- The 45mcg dose is effective for daily maintenance and preventative support.
- Some individuals might seek higher MK-7 dosages (e.g., 90-180mcg) for specific therapeutic needs.
- The price per serving is higher than some entry-level MK-4 products, though justified by quality.
$25.41($0.14 per serving)
 iHerb | $ 25.41 | |
 Walmart | $ 26.76 | |
 Vitacost | $ 26.99 |
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 | 45 mcg |
Categories
Vitamin K 90.0
Within the Vitamin K category, this product stands out due to its superior MK-7 form and the quality assurance of MenaQ7. It represents a premium choice for K2 supplementation, offering effective and reliable support compared to products containing less bioavailable forms or lower potencies.
Goals
Bone Health 90.0
The MK-7 form, especially MenaQ7, is highly effective for bone health as it efficiently activates osteocalcin, directing calcium to bones and improving bone mineral density. The 45mcg dose is well-regarded for its role in maintaining strong bones and preventing age-related bone loss. This product is a strong contender for those prioritizing skeletal integrity.
Heart Health 90.0
For heart health, MK-7 is paramount because it activates Matrix Gla Protein (MGP), which prevents calcium from accumulating in arteries, thus reducing arterial stiffness and calcification. The sustained presence of MK-7 in the bloodstream from this supplement makes it highly effective for long-term cardiovascular protection. It is widely recommended by nutritionists for this purpose.
This product provides excellent cardiovascular support due to its MK-7 content. Its role in keeping arteries flexible and clear of calcium deposits is a key benefit for overall cardiovascular well-being. The MenaQ7 specific form further enhances its reliability and efficacy in this crucial area of health.
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Life Extension's Super K, containing 2600mcg of Vitamin K (a comprehensive blend of K1, MK-4, and MK-7), offers a broad spectrum of K vitamins for multifaceted support at a competitive price for its potency. This broad coverage makes it a very good value for those seeking diverse K benefits.
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ADK Vitamins
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★★★★★
(1294 ratings)
Codeage's ADK Vitamins is a superior alternative, offering a very high dose of 1800mcg of MK-7, combined synergistically with Vitamins A and D. This comprehensive blend targets bone and cardiovascular health more intensely than a standalone K2 supplement, making it a powerful choice.
90 Performance
Vitamins D and K with Sea-lodine
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4.8
★★★★★
(20811 ratings)
Life Extension's D and K blend is a strong alternative that provides a substantial 2100mcg of Vitamin K (likely a blend including MK-7 and MK-4) alongside Vitamin D, optimizing calcium metabolism for both bone and arterial health. The inclusion of Iodine offers additional holistic support.
92 Performance
Once-Daily Health Booster
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4.7
★★★★★
(306 ratings)
Life Extension's Once-Daily Health Booster, with 3735mcg of Vitamin K, likely a potent blend of K1, MK-4, and MK-7, offers a significantly higher and broader spectrum of K vitamins. This makes it a more comprehensive and potentially more effective option for maximizing K-dependent protein activation for various health goals.