Swanson Natural Vitamin K2, 100 mcg supplement bottle
Swanson

Natural Vitamin K2, 100 mcg Review

What We Researched
1 active ingredient analyzed · 9 inactive ingredients decoded · 6 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
97
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 K2 [menaquinone-7 from natto (fermented soy)] 100 mcg *
Bioavailability Excellent

Absorption Rating

  • Vitamin K2 [menaquinone-7 from natto (fermented soy)] Good
Other Ingredients Excellent

Fillers & Additives

  • Sunflower Seed Oil
  • Gelatin
  • Glycerin
  • Beeswax
  • Dibasic Calcium Phosphate
  • Beeswax
  • Purified Water
  • Carob color (carob in glycerin with caramel)
  • Sunflower Lecithin
Efficacy Excellent

Dosage Analysis

  • Vitamin K2 [menaquinone-7 from natto (fermented soy)] 100 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin K2 [menaquinone-7 from natto (fermented soy)] 100 mcg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Sunflower Seed Oil Generally_safe
Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Beeswax Safe

Used as a coating and to help form softgel capsules.

Dibasic Calcium Phosphate Generally_safe

It is used as a filler and to improve tablet hardness.

Beeswax Safe

Used as a coating and to help form softgel capsules.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Carob color (carob in glycerin with caramel) Unknown
Sunflower Lecithin Safe

Helps mix oil and water-based ingredients. Allergen-free alternative to soy lecithin.

Brand Trust Report
Swanson

Founded 1969 · Fargo, North Dakota, United States · 1329 products · swansonvitamins.com

Certifications

6 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Npa Gmp Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
NSF Certified Verified

Transparency

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

Violation History

5 incidents
Recall Vitamin B12 Methylcobalamin High Absorption2022-03-04Source
Prop 65 Lead2015-11-03Source
Recall Swanson Premium Brand Full Spectrum Cilantro (Coriander)2014-04-04Source
Recall Swanson Organic Celery Seed (Whole)2011-12-16Source
Fda Warning Products contained an unauthorized drug (lovastatin) and were marketed with claims to treat high cholesterol, rendering them unapproved new drugs.2007-08-08Source
Related Supplements
Frequently Asked Questions
Is Swanson Natural Vitamin K2, 100 mcg a good supplement?

Swanson Natural Vitamin K2, 100 mcg 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 1 active ingredients Of the 9 inactive ingredients, 6 are rated safe and 0 are flagged for review. The manufacturer, Swanson, holds a brand trust score of 97/100 with 6 verified certifications including Nsf Gmp, Fda Gmp Inspections, Npa Gmp, Usda Organic.

What are the ingredients in Swanson Natural Vitamin K2, 100 mcg?

Swanson Natural Vitamin K2, 100 mcg contains 1 active ingredients: Vitamin K2 [menaquinone-7 from natto (fermented soy)] (100 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Swanson Natural Vitamin K2, 100 mcg safe to take?

Swanson Natural Vitamin K2, 100 mcg 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 Swanson a trustworthy supplement brand?

Swanson receives a brand trust score of 97/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1969 and headquartered in Fargo, North Dakota, United States, the company offers 1329 products in their lineup. They hold 6 verified certifications including Nsf Gmp, Fda Gmp Inspections, Npa Gmp, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Swanson 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.