Vitamin K2 100 mcg
Nature Made
Vitamin K2 100 mcg
4.4
★ ★ ★ ★ ★
(124 ratings)
Vitamin K 100 mcg
Score 68.0
A simple yet effective Vitamin K2 (MK-7) supplement, but it is a standalone product that omits the critical synergistic Vitamin D3 for optimal efficacy in bone and heart health.
Quantity: 30 Softgel(s)Servings size: 1 Softgel(s) (30 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 68.0
A simple yet effective Vitamin K2 (MK-7) supplement, but it is a standalone product that omits the critical synergistic Vitamin D3 for optimal efficacy in bone and heart health.
insights Analysis
Nature Made Vitamin K2 100 mcg delivers 100 mcg of Menaquinone-7 (MK-7), widely recognized by nutritionists and research as the most effective form of K2 for systemic benefits due to its superior bioavailability and longer half-life. While this dosage is good for maintenance, the product's primary limitation is its lack of Vitamin D, a vital partner for K2 in directing calcium to the bones and preventing its accumulation in arteries. Online reviews indicate general satisfaction, consistent with Nature Made's reputation. However, for comprehensive bone and cardiovascular support, a combined D3 and K2 supplement is often recommended by experts. The softgel form may also contribute to better absorption.
- Contains 100 mcg of Menaquinone-7 (MK-7), the preferred and most bioavailable form of Vitamin K2.
- Softgel form may offer better absorption.
- From a well-known and trusted brand, Nature Made.
- Does not include Vitamin D3, which is a crucial synergistic nutrient for K2's effectiveness in bone and cardiovascular health.
- Relatively high price per serving for a single-ingredient K2 supplement.
- Less comprehensive compared to products combining K2 with D3 or other beneficial nutrients.
$15.52($0.51 per serving)
 Walmart | $ 15.52 | |
 Vitacost | $ 17.49 |
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 75.0
The product focuses solely on Vitamin K2 as MK-7, which is a highly effective form, but it does not offer the breadth of other K forms or synergistic nutrients found in more comprehensive K-collection products.
Goals
Bone Health 70.0
The 100 mcg of MK-7 supports bone health by activating osteocalcin, but its effectiveness is somewhat limited without the presence of synergistic Vitamin D to optimize calcium metabolism.
Heart Health 70.0
MK-7 helps prevent arterial calcification, which is beneficial for heart health. However, for a more comprehensive approach, combining it with Vitamin D3 is often recommended.
By supporting vascular flexibility, K2 contributes to cardiovascular health. Yet, the absence of Vitamin D3 means it's not leveraging the full synergistic potential for arterial health.
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