MK-7 Vitamin K-2 100 mcg
NOW
MK-7 Vitamin K-2 100 mcg
4.8
★ ★ ★ ★ ★
(26660 ratings)
Vitamin K 100 mcg
Score 90.0
A high-quality, cost-effective Vitamin K2 (MK-7) supplement from a trusted brand, highly praised for its bioavailability and positive impact on targeted health goals, though it lacks companion nutrients like Vitamin D.
Quantity: 120 Capsule(s)Servings size: 1 Veg Capsule(s) (120 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 90.0
A high-quality, cost-effective Vitamin K2 (MK-7) supplement from a trusted brand, highly praised for its bioavailability and positive impact on targeted health goals, though it lacks companion nutrients like Vitamin D.
insights Analysis
This NOW product provides 100mcg of Vitamin K2 in its Menaquinone-7 (MK-7) form, which is widely recognized by nutritionists for its superior bioavailability and longer half-life compared to other forms like MK-4 or K1. The brand NOW is highly regarded for its commitment to quality and value, making this an accessible and reliable option. Online reviews consistently highlight the product's effectiveness and affordability, making it a popular choice for those seeking a standalone K2 supplement.
- Provides the highly bioavailable MK-7 form of Vitamin K2, ensuring optimal absorption and efficacy.
- Excellent price-per-serving, offering great affordability for consistent daily use.
- From NOW, a reputable brand known for quality, purity, and rigorous testing.
- High volume of positive customer reviews indicating widespread satisfaction and perceived effectiveness.
- Does not include synergistic nutrients like Vitamin D3, which is often recommended alongside K2 for enhanced bone and cardiovascular benefits.
- Pill form might not be preferred by all users compared to chewables or liquids.
$20.54($0.17 per serving)
 iHerb | $ 20.54 | |
 Vitacost | $ 22.79 | |
 Daily Vita | $ 23.10 |
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 | 100 mcg |
Categories
Vitamin K 90.0
This product focuses purely on Vitamin K2 (MK-7), delivering a high-quality, bioavailable form efficiently and affordably, making it an excellent choice within the Vitamin K category.
Goals
Bone Health 92.0
MK-7 is crucial for activating proteins like osteocalcin, which integrates calcium into bone matrix, making this an excellent choice for bone density and strength. The 100mcg dose is effective for daily support as recommended by nutritionists for bone mineralization.
Heart Health 90.0
Vitamin K2, especially MK-7, is vital for preventing arterial calcification by activating MGP (Matrix Gla Protein), which binds to calcium and prevents its deposition in soft tissues like arteries. This product's MK-7 form and consistent dosage contribute significantly to cardiovascular well-being.
Similar to heart health, its role in arterial decalcification and supporting flexible blood vessels makes it highly effective for overall cardiovascular function. The sustained presence of MK-7 in the body ensures continuous support for vascular health.
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