MK-7 90 mcg
Jarrow Formulas
MK-7 90 mcg
4.8
★ ★ ★ ★ ★
(7130 ratings)
Vitamin K 90 mcg
Score 95.0
A premium, cost-effective pure MK-7 Vitamin K2 supplement from a highly reputable brand, ideal for targeted bone and cardiovascular support.
Quantity: 120 Softgel(s)Servings size: 1 Softgel(s) (120 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 95.0
A premium, cost-effective pure MK-7 Vitamin K2 supplement from a highly reputable brand, ideal for targeted bone and cardiovascular support.
insights Analysis
Jarrow Formulas MK-7 provides 90 mcg of natural Menaquinone-7, the highly bioavailable form of Vitamin K2. This product stands out for its purity and the brand's strong reputation for producing science-backed supplements. With 120 servings per bottle, it offers a long-lasting supply at an excellent price point (25 cents per serving). The extensive positive reviews further solidify its standing as a trusted and effective option for supporting bone and cardiovascular health. It's ideal for individuals who prefer a standalone K2 supplement, allowing them to customize their Vitamin D intake separately.
- Contains Menaquinone-7 (MK-7), recognized as the most effective and bioavailable form of Vitamin K2 due to its longer half-life, ensuring prolonged action in the body.
- Produced by Jarrow Formulas, a highly respected brand known for its commitment to scientific research, quality ingredients, and rigorous testing standards, providing high assurance of product efficacy.
- Offers exceptional value with 120 servings at a very competitive price per serving, making it an affordable long-term option for daily Vitamin K2 supplementation.
- As a standalone Vitamin K2 product, it does not include Vitamin D3, which is a crucial cofactor for K2's efficacy in calcium metabolism, meaning users might need to supplement D3 separately.
- The capsule form, while standard, may not be suitable for individuals who have difficulty swallowing pills, potentially limiting its accessibility for some users.
$28.99($0.24 per serving)
 Daily Vita | $ 28.99 | |
 Walmart | $ 30.50 | |
 iHerb | $ 36.70 | |
 Amazon | $ 45.28 |
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 | 90 mcg |
Categories
Vitamin K 98.0
This product represents a gold standard for Vitamin K supplementation, exclusively providing the highly effective natural MK-7 form at a clinically relevant dose. Its purity and form make it ideal for those targeting optimal Vitamin K benefits.
Goals
Bone Health 95.0
MK-7 is highly effective for bone health as it activates osteocalcin, a protein that binds calcium into the bone matrix. This mechanism is critical for proper bone mineralization, contributing to strong bones and reducing the risk of osteoporosis.
Heart Health 95.0
For heart health, MK-7 plays a vital role by activating matrix Gla protein (MGP), which inhibits calcium deposition in the arteries and soft tissues. This helps maintain arterial flexibility and prevents calcification, crucial for reducing cardiovascular risk.
By actively working to prevent the buildup of calcium in arteries, MK-7 directly supports cardiovascular function and maintains healthy blood flow. This makes it a foundational supplement for long-term cardiovascular well-being and health.
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