Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels vs Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels

How they differ in real use

Built from our vitamin d3 k2 supplements scoring, each product's published specifications, and verified owner feedback — not hands-on testing.

Both the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels and the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels made our Top 5 Vitamin D3 + K2 Supplements, at #1 (best overall) and #2 (best premium). Its weighted score is strongest because it combines CoA access, MK-7, an oil carrier and a D3 dose used in a major human trial. Its modest iHerb review history does not outweigh those heavier criteria. ISURA verification and substantially greater iHerb buying history than Nordic are meaningful strengths. Nordic ranks slightly higher because its D3 dose more closely matches a major adult trial, its excipient list is cleaner and its active-unit value is better.

We score vitamin d3 + k2 supplements on Third-Party Testing (30%), Form & Bioavailability (25%), Dose vs Research (20%), Label Transparency (15%) and Value (10%). On that basis the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels totals 7.8 out of 10 and the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels 7.4. The widest gap is Third-Party Testing, where the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels scores 8 against 7 for the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels — independent certification or a published certificate of analysis. Label Transparency also separates them: 9 for the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus 7 for the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels.

On paper, the specifications that actually differ: Vitamin D3 per Serving — 50 mcg (2,000 IU) on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus 25 mcg (1,000 IU) on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels; K2 Form and Source — Menaquinone-7 (MK-7); source not stated on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus Menaquinone-7 (MK-7) from natto bean on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels; Vitamin K2 per Serving — 90 mcg on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus 120 mcg on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels; Serving Size — 1 soft gel on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus 1 softgel on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels; Delivery and Fat Carrier — Gelatin softgel with organic extra-virgin olive oil on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus Gelatin softgel with palm- and coconut-derived MCT on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels; Dietary and Allergen Notes — No gluten, milk derivatives or synthetic dyes; contains gelatin on the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels versus No dairy, wheat, gluten, yeast, sesame, egg, fish or shellfish; contains gelatin and beeswax on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels. They match on D3 Form and Source.

Pricing as of August 5, 2026: $16.96 for the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels and $20.97 for the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels, a $4.01 difference in the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels's favor. Owners praise the Nordic Naturals, Vitamin D3 + K2, Great Orange, 60 Soft Gels for the 2,000 IU D3 dose matches the amount used in the large VITAL human trial and remains below the US adult 4,000 IU daily upper limit. and the gelatin softgel contains organic extra-virgin olive oil for these fat-soluble ingredients.; the most common complaint is the gelatin capsule makes the product unsuitable for vegans. Owners praise the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels for ISURA Verified Clean independently covers the finished product for a broad contaminant panel. and the label discloses 120 mcg of MK-7 sourced from natto bean rather than an unspecified vitamin K blend.; the most common complaint is the softgel contains gelatin, beeswax and caramel color, so it is not vegan and has more excipients than the Nordic formula.