Vitamin K 100 mcg
Solaray
Vitamin K 100 mcg
4.8
★ ★ ★ ★ ★
(1173 ratings)
Vitamin K 100 mcg
Score 68.0
A reliable and affordable Vitamin K1 supplement from a reputable brand, primarily for blood clotting and general Vitamin K needs, but less effective for advanced bone and heart health compared to K2 options.
Quantity: 100 Tablet(s)Servings size: 1 Tablet(s) (100 servings)
Selected goals:
Other goals:
Bone Health
Heart Health
Cardiovascular Support
General Health
leaderboard Score 68.0
A reliable and affordable Vitamin K1 supplement from a reputable brand, primarily for blood clotting and general Vitamin K needs, but less effective for advanced bone and heart health compared to K2 options.
insights Analysis
This Solaray product offers 100 mcg of Vitamin K in the form of Phylloquinone (Vitamin K1). It is a straightforward, single-ingredient supplement aimed at providing basic Vitamin K support. Similar to other K1-only products, it is effective for blood clotting and contributes to general health, but it does not leverage the more targeted benefits of Vitamin K2 for bone and cardiovascular health that many nutritionists and online reviews advocate for, especially when calcium deposition is a concern.
- Provides a standard and essential dose of Vitamin K1.
- From a reputable brand (Solaray) with a high review count, suggesting user satisfaction.
- Affordable option for daily Vitamin K1 supplementation.
- Limited to Vitamin K1, which may not be the most effective form for comprehensive bone and cardiovascular benefits compared to K2.
- Does not include other synergistic nutrients like Vitamin D3 often recommended alongside Vitamin K for bone health.
- Patients taking anticoagulant medications (e.g., Warfarin) should consult their doctor before using Vitamin K supplements to avoid potential drug interactions.
$7.29($0.07 per serving)
 iHerb | $ 7.29 | |
 Vitacost | $ 7.29 | |
 Walmart | $ 8.27 |
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 K | 100 mcg |
Categories
Vitamin K 68.0
This product delivers a standard dose of Vitamin K1 from a trusted brand. While it fulfills the role of a basic Vitamin K supplement, it falls short in the collection by not incorporating Vitamin K2, which is increasingly recommended by experts for superior bone and cardiovascular benefits.
Goals
General Health 70.0
As an essential vitamin provided in a standard dose, this supplement effectively contributes to general health by ensuring adequate intake of Vitamin K1 for critical bodily functions. It's a solid choice for those specifically needing K1 or general K maintenance.
Bone Health 60.0
Phylloquinone supports the body's natural bone health processes by helping to activate proteins involved in bone metabolism. However, for proactive bone density maintenance and improved calcium utilization, many experts point towards Vitamin K2 as a more impactful form due to its role in osteocalcin activation specific to bone matrix.
Heart Health 55.0
Vitamin K1 is vital for proper blood coagulation, which is fundamental to heart function. Nevertheless, the direct role in preventing arterial calcification and supporting arterial elasticity, often highlighted for robust heart health, is more commonly attributed to Vitamin K2.
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