American Standard Supplements Vitamin D3 5000 IU
- Vitamin D
- Capsule
- Vitamin-d
- 120
A higher-dose D3 and K2 combination capsule for buyers who want both in one daily pill, worth checking against a doctor's dosing advice first.
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How it ranks among the 137 vitamin d we track
4.7★ across 1,300 Amazon ratings, Bayesian-smoothed toward the category average.
1,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
700+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 137 vitamin d we track - how the scorecard works · full vitamin d data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
American Standard Supplements' formula pairs 5000 IU of vitamin D3 with 200mcg of vitamin K2 (MK7) in one capsule, sold as a 120-count, gluten-free, non-GMO bottle marketed for immune support.
D3 and K2 are frequently combined in supplement formulas, and this one puts both into a single daily capsule rather than requiring two separate products. At 5000 IU, the D3 dose here is well above the amounts found in most standard multivitamins, which typically run 400 to 1000 IU. The 120-capsule count matches the 120-day supply claim on the label at one capsule per day.
- 5000 IU vitamin D3 per capsule
- 200mcg vitamin K2 (MK7) per capsule
- 120 capsules, a 120-day supply
- Gluten-free and non-GMO
Who it's for
Fits adults who specifically want a higher-dose D3 paired with K2 in one capsule rather than a lower-dose multivitamin blend. It is not the right fit for anyone who has been told by a doctor to stick to a lower vitamin D dose, since 5000 IU is a substantial daily amount.
Strengths and trade-offs
Drawn from this product's published specifications.
- Combines D3 and K2 in a single daily capsule
- 120-day supply at one capsule per day
- Gluten-free and non-GMO
- 5000 IU D3 is well above standard multivitamin levels, so overlap with other supplements is worth checking
- No lower-dose option within this same bottle
Performance notes
One capsule delivers both nutrients together, so there is no need to time separate D3 and K2 products around each other. The label ties the 120-capsule count directly to a 120-day supply, meaning the intended serving is one capsule per day. Because 5000 IU exceeds typical multivitamin D levels, checking against any other vitamin D sources in the diet is worth doing before starting.
Specifications
| Brand | American |
|---|---|
| Model | VitaminK2D3 |
| Form | Capsule |
| Supplement Type | Vitamin-d |
| Count | 120 |
| Flavor | Unflavored |
| Benefits | Immune Support |
| Diet | Gluten Free |
How it compares
This product against the closest alternatives we track in vitamin d.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| American Standard Supplements Vitamin D3 5000 IUThis product | 4.7 / 5 | 1,300 | 4.4 / 5 |
| Nature's Bounty Vitamin D3 5000 IU SoftgelsNature's | 4.8 / 5 | 83,500 | 4.7 / 5 |
| Sports Research Vitamin D3 5000 IU with Coconut MCT OilSports | 4.8 / 5 | 71,400 | 4.7 / 5 |
| Nature Made Vitamin D3 5000 IUNATURE | 4.8 / 5 | 67,100 | 4.7 / 5 |
| vitafusion Vitamin D3 GummiesVitafusion | 4.8 / 5 | 54,500 | 4.7 / 5 |
Similar vitamin d from other brands
Questions about the American VitaminK2D3
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much vitamin D3 is in each capsule?
Each capsule contains 5000 IU (125mcg) of vitamin D3.
Does this include vitamin K2?
Yes, each capsule also contains 200mcg of vitamin K2 (MK7).
How long does one bottle last?
The label lists 120 capsules as a 120-day supply at one capsule per day.