Head to head · Vitamins & Minerals
Nature Made Vitamin D3 2000 IU Softgels vs Sports Research Vitamin D3 + K2 (5000 IU)
Nature Made scores higher overall (9.0 vs 7.8 out of 10) and leads on four of the five factors we score.
Updated September 2026 from our full reviews · How we score
A USP Verified 2,000 IU vitamin D3 softgel in soybean oil for about 6 cents a day, the no-frills benchmark for daily vitamin D.
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Amazon's top D3+K2 pick: vegan lichen D3 plus MK-7 K2 in coconut MCT oil; the 5,000 IU dose exceeds the adult upper limit for daily use.
We may earn a commission when you buy through these links — it never affects our scores. How we make money
We may earn a commission when you buy through these links — it never affects our scores. How we make money
The short answer
Choose Nature Made if…
- Adults with limited sun exposure
- Budget shoppers who want USP verification
- People who prefer a small, easy-to-swallow softgel
- You care most about efficacy, quality & purity, value, transparency
Choose Sports Research if…
- Vegans who want lichen-derived D3
- People with a documented deficiency under medical guidance
- Anyone who wants D3 and K2 in one small softgel
Side by side
| Vitamin D3 2000 IU Softgels | Vitamin D3 + K2 (5000 IU) | |
|---|---|---|
| Our score | 9.0 / 10 | 7.8 / 10 |
| Efficacy (30%) | 8.6 | 7.4 |
| Quality & Purity (25%) | 9.0 | 7.4 |
| Value (20%) | 9.8 | 7.8 |
| Experience (15%) | 9.0 | 8.8 |
| Transparency (10%) | 9.0 | 8.3 |
| Form | Softgel | Softgel |
| Serving | 1 softgel250 servings per container | 1 veggie softgel60 servings per container |
| Testing & certifications | USP Verified | Non-GMO Project VerifiedCertified VeganThird-party testedcGMP facility |
| Dietary | Gluten-free | Vegan, Gluten-free, Soy-free, Non-GMO |
| Key ingredients |
|
|
| Flavors | — | — |
| Creator video reviews | 4 | 5 |
Pros and cons
Vitamin D3 2000 IU Softgels
- USP Verified for ingredients, potency and manufacturing
- 2,000 IU of D3 is half the adult upper limit
- About $0.06 per day
- Small softgel with an oil base that supports absorption
- Gelatin shell, so not vegetarian
- Soybean oil base may not suit people avoiding soy-derived ingredients
- No vitamin K2 for those who want a combined formula
Vitamin D3 + K2 (5000 IU)
- Certified Vegan and Non-GMO Project Verified, with no soy, gelatin or carrageenan
- D3 from lichen plus K2 as long-acting MK-7
- Tiny, easy-to-swallow softgel in an MCT oil base
- Official TikTok Shop listing rated 4.8 stars
- 5,000 IU exceeds the 4,000 IU adult upper limit for daily use
- No USP or NSF certification; testing claims are the brand's own
- Evidence for K2's bone and arterial benefits is still limited
- About $0.40 per day, more than plain D3
Our verdicts
Vitamin D3 2000 IU Softgels
For most adults who want a daily vitamin D supplement, this is the benchmark: a sensible 2,000 IU dose, USP verification and a price that is hard to beat. Vegetarians should choose a gelatin-free option, and people who already have adequate levels should not expect broader health effects.
Full review
Vitamin D3 + K2 (5000 IU)
This is a well-made, vegan D3 and K2 combination that people clearly enjoy taking, which explains its bestseller status. The 5,000 IU dose is higher than most adults need day after day and exceeds the upper limit, so it fits best under a clinician's guidance or on a less-than-daily schedule; everyone else should consider the 2,500 IU version.
Full review