Vitamins D3 5000 IU & K2 (MK-7) 180 mcg
Dr. Mercola
Vitamins D3 5000 IU & K2 (MK-7) 180 mcg
4.8
★ ★ ★ ★ ★
(2480 ratings)
Vitamin K 180 mcg
Score 85.0
Dr. Mercola D3 5000 IU & K2 (MK-7) 180 mcg is a potent and effective supplement for bone and heart health, featuring high doses of both essential vitamins. It's a high-quality product but comes with a premium price tag.
Quantity: 30 Capsule(s)Servings size: 1 Capsule(s) (30 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 85.0
Dr. Mercola D3 5000 IU & K2 (MK-7) 180 mcg is a potent and effective supplement for bone and heart health, featuring high doses of both essential vitamins. It's a high-quality product but comes with a premium price tag.
insights Analysis
Dr. Mercola's Vitamins D3 5000 IU & K2 (MK-7) 180 mcg is formulated for comprehensive bone and cardiovascular support. The 5000 IU of Vitamin D3 is a well-regarded dose by nutritionists for achieving and maintaining optimal serum levels. Its standout feature is the higher concentration of Vitamin K2 as Menaquinone-7 (MK-7) at 180mcg. This dose is often recommended for individuals seeking maximal support for calcium management, ensuring it's effectively directed to bones and teeth while preventing its deposition in arteries and soft tissues. Online reviews generally praise Dr. Mercola's products for their quality and efficacy. However, at $0.99 per serving, this product is significantly more expensive than many comparable D3/K2 supplements on the market. While the higher K2 dose justifies some of the cost, consumers prioritizing budget might find it less appealing.
- Delivers a high and often recommended dose of 5000 IU Vitamin D3 for robust immune and bone support.
- Contains a significant 180mcg of Menaquinone-7 (MK-7), a superior form of K2, for optimal calcium redirection and arterial health.
- Formulated by a well-known figure in natural health, Dr. Mercola, often associated with high-quality ingredients and formulations.
- The price per serving of $0.99 is very high, making it one of the more expensive D3/K2 supplements available.
- The small serving count (30 servings) means frequent repurchases for consistent use, potentially exacerbating the cost concern.
$29.99($0.99 per serving)
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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 D3 | 125 mcg |
Vitamin K2 | 180 mcg |
Categories
Vitamin K 95.0
Providing 180mcg of Menaquinone-7 (MK-7), this product offers a very high and effective dose of the most bioavailable form of Vitamin K2, making it an excellent choice for individuals specifically seeking comprehensive K2 benefits.
Goals
Bone Health 98.0
This product offers an optimal synergy for bone health with 5000 IU D3 and 180mcg MK-7. This high dose of MK-7 ensures efficient calcium utilization, maximizing bone mineral density and strength, a combination highly favored by experts.
Heart Health 95.0
The substantial 180mcg MK-7 dose is particularly beneficial for heart health by strongly activating MGP, a protein that inhibits calcium buildup in arteries, thereby promoting arterial flexibility and reducing cardiovascular risk.
The potent combination of D3 and 180mcg MK-7 provides comprehensive cardiovascular support. This ensures calcium is properly managed in the body, which is critical for maintaining healthy blood vessels and preventing calcification-related issues.
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ADK Vitamins
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This product offers an extremely high 1800mcg of K2 (MK-7) for only $0.19 per serving. This is a superior dose at a significantly lower price point, providing exceptional value for those prioritizing high-potency K2.
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Vitamins D and K with Sea-lodine
Life Extension
4.8
★★★★★
(20811 ratings)
For $0.25 per serving, this alternative provides 2100mcg of Vitamin K and D. This represents significantly more K per dollar than the Dr. Mercola product, making it an excellent 'better value' for high-dose K and D supplementation.
90 Value
Vitamin D3 5000 IU (125 mcg) with K & K2
MegaFood
4.8
★★★★★
(1205 ratings)
While its K2 dose is 80mcg (vs 180mcg), this MegaFood product still offers a potent D3 5000 IU + K2 (MK-7) combination for only $0.31 per serving, delivering excellent value for a comprehensive D3/K2 supplement at a fraction of the cost.
95 Performance
ADK Vitamins
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★★★★★
(1294 ratings)
While Dr. Mercola's K2 dose is high, Codeage's ADK Vitamins boast an even more impressive 1800mcg of K2 (MK-7), which can be considered 'better' for individuals with very specific or elevated K2 requirements, alongside its D and A components.
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Super K
Life Extension
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(11302 ratings)
This Life Extension product contains a comprehensive blend providing 2600mcg of total Vitamin K. This broad-spectrum approach may be 'better' for ensuring all forms of K are adequately supplemented compared to a single-form K2 focus.
90 Performance
Once-Daily Health Booster
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4.7
★★★★★
(306 ratings)
Offering an extremely high 3735mcg of Vitamin K, this 'booster' is designed for maximum K input, potentially including various forms, making it a 'better' option for those seeking the highest possible K supplementation, albeit at a very high price.