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Mega D3 & K2 + Turmeric Extract

Irwin Naturals
4.8
★ ★ ★ ★ ★
(1668 ratings)
Vitamin K 120 mcg
Eleuthero 100 mg
Turmeric 25 mg
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Score94

A high-potency D3 and K2 supplement optimized with flaxseed oil and minerals for bone and heart health.

How scoring works
Quantity:60 Softgel(s) • (30 servings)
Goals:
General Health
Heart Health
Bone Health
Cardiovascular Support
Anti-Aging

Score 94

A high-potency D3 and K2 supplement optimized with flaxseed oil and minerals for bone and heart health.

How scoring works
$17.99($0.59 per serving)
Pure Formulas
$ 17.99
iHerb
$ 17.99
Vitacost
$ 17.99
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Analysis

It features high doses of vitamin D3 and the MK-7 form of vitamin K2, which work together to make sure calcium goes to your bones instead of your arteries. These are delivered in a softgel with flaxseed oil, which is essential for the absorption of these specific vitamins.

The formula is rounded out with bioavailable magnesium and zinc citrates, along with a touch of turmeric and eleuthero for general wellness. It is a top-tier choice for long-term structural and cardiovascular support.

Pros

  • Clinical doses of D3 and K2 (MK-7)
  • Flaxseed oil base for better absorption
  • Uses bioavailable mineral citrates
  • Supports both heart and bone health simultaneously

Cons

  • Turmeric dose is very small
  • Softgels contain gelatin; not vegan
  • Requires two softgels for the full dose

Warnings

  • Vitamin K2 can interact with warfarin; consult a professional before use
  • Contains 100mcg of D3; monitor your blood levels with long-term use

Nutrient quality

89 Highest impact

Combination of vitamins, minerals, and botanical extracts provides synergistic support for wellness goals. softgel delivery and BioPerine inclusion support higher bioavailability of many active components.

Ingredient transparency

99 Highest impact

Transparency is high with individual weights for many primary actives and extracts fully disclosed. Clear identification of vitamin sources and botanical markers enhances consumer trust.

Customer satisfaction

97 Highest impact

Outstanding user ratings over a massive volume of reviews reflect high consistency and trust. Feedback frequently confirms the formula's role in promoting wellness and maintaining daily health.

Value for money

89 Highest impact

Cost per serving is fair for a formula containing high-quality vitamins and botanical extracts. Each dose provide meaningful support across many nutritional pathways at a competitive market rate.

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Goals

Impact
Highest effect
A+ Goal FitA+ Strength of SupportA- CoverageA+ Formula Quality

Vitamin D3 and K2 work synergistically to support calcium metabolism and cardiovascular health. High doses of D3 (100 mcg) and K2 (120 mcg) provide robust foundational support.

Magnesium and Zinc are included in bioavailable citrate forms for optimal mineral status. This synergistic blend appears well aligned with long-term maintenance of bone and arterial resilience.

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Impact
Highest effect
A+ Goal FitA+ Strength of SupportB+ CoverageA+ Formula Quality

Vitamin K2 as MK-7 and Vitamin D3 are provided at clinical doses to support arterial health and calcium balance. The 120 mcg dose of MK-7 is exceptionally well-aligned with goals for maintaining vascular flexibility and structural heart health.

Providing these fat-soluble vitamins in a softgel format with flaxseed oil ensures optimal absorption and effectiveness. This combination is a highly logical and potent way to address the pathway of vascular calcification and long-term cardiovascular integrity.

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Impact
Highest effect
A+ Goal FitA Strength of SupportA- CoverageA Formula Quality

This targeted formula supports bone health through high-dose Vitamin D3 and Vitamin K2 (MK-7), which are critical for skeletal mineralization. These are complemented by bioavailable Magnesium and Zinc Citrate to provide both signaling and structural cofactors.

The inclusion of Bamboo Extract provides silica, which may contribute to matrix stability and structural integrity. This combination appears very well-aligned with the goal of optimizing calcium deposition and supporting bone turnover.

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Impact
Highest effect
A Goal FitA+ Strength of SupportB+ CoverageA+ Formula Quality

Vitamin K2 as menaquinone-7 supports healthy arterial flexibility by directing calcium away from blood vessel walls. This combination also include magnesium citrate and flaxseed oil to support overall cardiovascular maintenance.

The clinical dose of 120 mcg of MK-7 ensures therapeutic effectiveness for vascular health. Softgel delivery and the inclusion of flaxseed oil optimize the absorption of these fat-soluble nutrients for the body.

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Impact
Highest effect
A Goal FitA Strength of SupportB CoverageA+ Formula Quality

This softgel incorporates high-potency Vitamin D3 (100 mcg) and 120 mcg of Vitamin K2 (MK-7) to support vascular flexibility and skeletal strength. The addition of 1100 mg Flaxseed Oil appears well aligned with providing a healthy lipid base to optimize the absorption of these fat-soluble anti-aging drivers.

Synergistic botanicals such as Turmeric and Eleuthero support metabolic and stress resilience. Human clinical trials confirm that MK-7 at this dosage meaningfully contributes to mitigating age-related arterial calcification and maintaining bone density.

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Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
Total Fat
1 Gram(s)
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Vitamin D3 (Cholecalciferol)
100 mcg
Magnesium (Magnesium Citrate)
100 mg
Zinc (Zinc Citrate)
15 mg
Flaxseed Oil
1100 mg
Eleuthero root extract
100 mg
Bamboo Extract (Bambusa vulgaris Leaf Extract, Bambusa vulgaris Stem Extract)
28.6 mg
Turmeric root extract
25 mg
Vitamin K2 (Menaquinone-7)
120 mcg
BioPerine Complex
6 mg
Adults 18–50 Women
Report overview
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
This targeted supplement provides a clinical dose of high-quality Vitamin K2 as MK-7 in an optimized softgel format with flaxseed oil. Its clinical dosage and superior bioavailability make it a top-tier choice for Vitamin K support.
Eleuthero · 100 mg OverallScore73
C Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyB+ Value
This complex formula includes eleuthero for secondary adaptogenic support alongside vitamins and minerals. The root extract is used at a moderate dose that complements the wider nutritional profile of the product.
Turmeric · 25 mg OverallScore24
C- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
This formula uses a very small amount of unstandardized turmeric extract with black pepper for absorption. It is primarily a Vitamin D3 and K2 supplement and is not an effective source of turmeric.
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