Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules supplement bottle
Nature's Bounty

Vitamin K2 + D3, 30 Vegetable Capsules Review

What We Researched
2 active ingredients analyzed · 15 inactive ingredients decoded · 7 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as D3 Cholecalciferol) (4,000 IU) 100 mcg 500%
Vitamin K2 (as Menaquinone-7) 100 mcg **
Bioavailability Excellent

Absorption Rating

  • Vitamin D (as D3 Cholecalciferol) (4,000 IU) Good
  • Vitamin K2 (as Menaquinone-7) Good
Other Ingredients Excellent

Fillers & Additives

  • Black Carrot Juice
  • Carnauba Wax
  • Citric Acid
  • Corn Syrup
  • Dl-Alpha-Tocopherol
  • Fruit Juice (colour)
  • Gelatin
  • Lemon Flavour
  • Orange Flavour
  • Pectin
  • Strawberry Flavour
  • Sugar
  • Vegetable Juice (colour)
  • Vegetable Oil
  • Water
Efficacy Excellent

Dosage Analysis

  • Vitamin D (as D3 Cholecalciferol) (4,000 IU) 100 mcg Effective
  • Vitamin K2 (as Menaquinone-7) 100 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D (as D3 Cholecalciferol) (4,000 IU) 100 mcg 500%
Vitamin K2 (as Menaquinone-7) 100 mcg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Black Carrot Juice Unknown
Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Corn Syrup Generally_safe

Provides sweetness and texture in gummy supplements.

Dl-Alpha-Tocopherol Unknown
Fruit Juice (colour) Unknown
Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Lemon Flavour Unknown
Orange Flavour Unknown
Pectin Safe

Forms the base of gummy supplements as a vegan gelatin alternative.

Strawberry Flavour Unknown
Sugar Generally_safe

Adds sweetness to chewable or gummy supplements.

Vegetable Juice (colour) Unknown
Vegetable Oil Generally_safe

It can be used as a carrier or emollient.

Water Safe

Dissolves and carries water-soluble ingredients.

Brand Trust Report
Nature's Bounty

Founded 1971 · Ronkonkoma, New York, USA · 712 products · naturesbounty.com

Certifications

7 certifications
Clean Label Project Verified Source
Health Canada Licensed Verified Source
Labdoor Verified Source
Usda Organic Verified Source
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
USP Verified Verified

Transparency

5 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source
Testing Lab Disclosure — Claimed
Contains Proprietary Blend — True

Violation History

5 incidents
Lawsuit Falsely advertising heart health benefits of fish oil supplements.2025Source
Lawsuit Deceptive use of Amazon reviews ('review hijacking') to promote products.2024Source
Recall Nature's Bounty Kids Multivitamin Gummies2023-06-02Source
Prop 65 Lead2023-03-28Source
Lawsuit Falsely advertising 'fish oil' supplements that are a synthetic omega-3 product.2023Source
Related Supplements
Frequently Asked Questions
Is Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules a good supplement?

Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients Of the 15 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Nature's Bounty, holds a brand trust score of 100/100 with 7 verified certifications including Clean Label Project, Health Canada Licensed, Labdoor, Usda Organic.

What are the ingredients in Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules?

Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules contains 2 active ingredients: Vitamin D (as D3 Cholecalciferol) (4,000 IU) (100 mcg), Vitamin K2 (as Menaquinone-7) (100 mcg). Notable high-dose ingredients include Vitamin D at 500% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules safe to take?

Nature's Bounty Vitamin K2 + D3, 30 Vegetable Capsules has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Nature's Bounty a trustworthy supplement brand?

Nature's Bounty receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1971 and headquartered in Ronkonkoma, New York, USA, the company offers 712 products in their lineup. They hold 7 verified certifications including Clean Label Project, Health Canada Licensed, Labdoor, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature's Bounty has 5 historical regulatory incidents on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 150,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.