Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels vs NOW Foods, Mega D3 & MK-7, 60 Capsules
Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels (#2, best premium) vs NOW Foods, Mega D3 & MK-7, 60 Capsules (#5): in our Vitamin D3 + K2 Supplements scoring the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels totals 7.4/10 and the NOW Foods,…
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Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels
$20.97Check price at iHerbRead full review
TopsFive comparison scores
Side by side
| Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels | NOW Foods, Mega D3 & MK-7, 60 Capsules | |
|---|---|---|
| Price | $20.97 | $16.52 |
| D3 Form and Source | Cholecalciferol; source not stated on the label | Cholecalciferol from lanolin |
| Vitamin D3 per Serving | 25 mcg (1,000 IU) | 125 mcg (5,000 IU) |
| K2 Form and Source | Menaquinone-7 (MK-7) from natto bean | Menaquinone-7 (MK-7), branded MenaQ7 |
| Vitamin K2 per Serving | 120 mcg | 180 mcg |
| Serving Size | 1 softgel | 1 capsule |
| Delivery and Fat Carrier | Gelatin softgel with palm- and coconut-derived MCT | Dry hypromellose capsule; label directs use with a fat-containing meal |
| Dietary and Allergen Notes | No dairy, wheat, gluten, yeast, sesame, egg, fish or shellfish; contains gelatin and beeswax | Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts or sesame; not vegan |
| Testing Evidence | ISURA Verified Clean and Non-GMO seals | GMP Quality Assured and made/quality tested in the USA; no qualifying product-specific certification or public CoA located |
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 Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels and the NOW Foods, Mega D3 & MK-7, 60 Capsules made our Top 5 Vitamin D3 + K2 Supplements, at #2 (best premium) and #5. 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. MenaQ7, strong value and extensive iHerb adoption make it a credible fifth choice. Popularity cannot offset the lowest testing score in this group and a 5,000 IU D3 dose above the adult upper limit.
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 Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels totals 7.4 out of 10 and the NOW Foods, Mega D3 & MK-7, 60 Capsules 6.3. 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 3 for the NOW Foods, Mega D3 & MK-7, 60 Capsules — independent certification or a published certificate of analysis. Value also separates them: 7 for the NOW Foods, Mega D3 & MK-7, 60 Capsules versus 3 for the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels. The NOW Foods, Mega D3 & MK-7, 60 Capsules claws back ground on Label Transparency.
On paper, the specifications that actually differ: D3 Form and Source — Cholecalciferol; source not stated on the label on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus Cholecalciferol from lanolin on the NOW Foods, Mega D3 & MK-7, 60 Capsules; Vitamin D3 per Serving — 25 mcg (1,000 IU) on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus 125 mcg (5,000 IU) on the NOW Foods, Mega D3 & MK-7, 60 Capsules; K2 Form and Source — Menaquinone-7 (MK-7) from natto bean on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus Menaquinone-7 (MK-7), branded MenaQ7 on the NOW Foods, Mega D3 & MK-7, 60 Capsules; Vitamin K2 per Serving — 120 mcg on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus 180 mcg on the NOW Foods, Mega D3 & MK-7, 60 Capsules; Serving Size — 1 softgel on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus 1 capsule on the NOW Foods, Mega D3 & MK-7, 60 Capsules; Delivery and Fat Carrier — Gelatin softgel with palm- and coconut-derived MCT on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus Dry hypromellose capsule; label directs use with a fat-containing meal on the NOW Foods, Mega D3 & MK-7, 60 Capsules.
Pricing as of August 5, 2026: $20.97 for the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels and $16.52 for the NOW Foods, Mega D3 & MK-7, 60 Capsules, a $4.45 difference in the NOW Foods, Mega D3 & MK-7, 60 Capsules's favor. 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. Owners praise the NOW Foods, Mega D3 & MK-7, 60 Capsules for the 180 mcg MenaQ7 dose equals the MK-7 amount used in a published three-year human trial. and at $0.28 per serving, active-unit costs are approximately $0.055 per 1,000 IU of D3 and $0.153 per 100 mcg of K2.; the most common complaint is the 5,000 IU D3 serving exceeds the US adult upper limit, and its lanolin source is not vegan.
Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels
- ISURA Verified Clean independently covers the finished product for a broad contaminant panel.
- The label discloses 120 mcg of MK-7 sourced from natto bean rather than an unspecified vitamin K blend.
- The softgel contains MCT from RSPO-certified palm and coconut oils.
- The softgel contains gelatin, beeswax and caramel color, so it is not vegan and has more excipients than the Nordic formula.
- Its active-unit costs are approximately $0.35 per 1,000 IU of D3 and $0.29 per 100 mcg of K2.
NOW Foods, Mega D3 & MK-7, 60 Capsules
- The 180 mcg MenaQ7 dose equals the MK-7 amount used in a published three-year human trial.
- At $0.28 per serving, active-unit costs are approximately $0.055 per 1,000 IU of D3 and $0.153 per 100 mcg of K2.
- Roughly 31,000 iHerb reviews and 4,000-5,000 recent monthly sales show substantial buyer adoption.
- The 5,000 IU D3 serving exceeds the US adult upper limit, and its lanolin source is not vegan.
- GMP Quality Assured and made-and-quality-tested claims are not equivalent to a named product-specific certification or published CoA.
Which should you buy?
The Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels is the better fit for buyers prioritizing named independent contaminant verification and buyers wanting 120 mcg of clearly sourced MK-7 — it is the higher-scoring pick here, chiefly for Third-Party Testing and Dose vs Research. The NOW Foods, Mega D3 & MK-7, 60 Capsules is the better fit for buyers wanting 180 mcg of branded MenaQ7 and buyers prioritizing active-unit value over vegan sourcing, and the stronger choice if Value and Label Transparency matter more to you than the overall score. If the $4.45 saving matters more than Third-Party Testing, the NOW Foods, Mega D3 & MK-7, 60 Capsules is the better value. The Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels is a poor fit for vegans; the NOW Foods, Mega D3 & MK-7, 60 Capsules is a poor fit for vegans.
Choose the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels if
- Buyers prioritizing named independent contaminant verification
- Buyers wanting 120 mcg of clearly sourced MK-7
Skip it if
- Vegans
- Buyers prioritizing low cost per active unit
Choose the NOW Foods, Mega D3 & MK-7, 60 Capsules if
- Buyers wanting 180 mcg of branded MenaQ7
- Buyers prioritizing active-unit value over vegan sourcing
Skip it if
- Vegans
- Buyers requiring strong product-specific third-party verification
Common questions
Is the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels better than the NOW Foods, Mega D3 & MK-7, 60 Capsules?
In our Vitamin D3 + K2 Supplements ranking the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels scores higher overall, 7.4 to 6.3, with the biggest advantage in Third-Party Testing. The NOW Foods, Mega D3 & MK-7, 60 Capsules is stronger on Value and Label Transparency, so it is the better pick if those matter most to you.
How much more does the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels cost than the NOW Foods, Mega D3 & MK-7, 60 Capsules?
$4.45 more as of August 5, 2026: $20.97 for the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels against $16.52 for the NOW Foods, Mega D3 & MK-7, 60 Capsules. Prices move, so the merchant page shows the current figure. What the extra buys is mostly Third-Party Testing — 8 versus 3 in our scoring.
What is the main difference between the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels and the NOW Foods, Mega D3 & MK-7, 60 Capsules?
The headline spec difference is D3 Form and Source: Cholecalciferol; source not stated on the label on the Natural Factors, Vitamin D3 & K2, 25 mcg (1,000 IU) & 120 mcg, 60 Softgels versus Cholecalciferol from lanolin on the NOW Foods, Mega D3 & MK-7, 60 Capsules. In use, the gap that matters most is Third-Party Testing (8 vs 3 in our scoring): independent certification or a published certificate of analysis.