Designs

Designs for Health Vitamin D Synergy

Vitamin D
Capsule
Vitamin D + K Capsules
120

4.7/ 5 on Amazon1,000Amazon ratings1,000+bought last month4.4ProductDome score

High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou want vitamin D3 paired with vitamin K rather than D3 alone.

A 2000 IU vitamin D3 and K combination capsule for bone and immune support, gluten free and vegetarian but containing dairy.

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ProductDome scorecard

How it ranks among the 137 vitamin d we track

4.4/ 5ProductDome scoreHigh confidence

Owner satisfaction · 56% of scorecategory median 4.7★4.7

4.7★ across 1,000 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 3,200 ratings3.8

1,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score3.8

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

Designs for Health pairs 2000 IU of vitamin D3 with vitamin K in a 120 capsule bottle, aimed at bone and immune support. It is gluten free and vegetarian.

Combining D3 with K reflects the common practice of pairing the two since vitamin K is tied to how the body directs calcium alongside vitamin D. The allergen listing notes dairy, worth checking for anyone avoiding dairy-derived ingredients.

2000 IU vitamin D3 plus vitamin K
120 capsules per bottle
Gluten free, vegetarian
Unflavored capsule form

Who it's for

Suits adults wanting a combined D3 and K capsule at a 2000 IU dose rather than a D3-only formula. Less suited to anyone needing to avoid dairy-derived ingredients or wanting a lower IU dose.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

2000 IU vitamin D3 combined with vitamin K
Gluten free and vegetarian
120 capsule count covers an extended supply

What to check first

Higher IU dose may not suit everyone's needs

Performance notes

The formula pairs D3 with vitamin K, a combination commonly used because vitamin K plays a role in how the body directs calcium, the typical rationale for stacking the two rather than taking D3 by itself.

Specifications

Brand	Designs
Model	2854
Form	Capsule
Supplement Type	Vitamin D + K Capsules
Count	120
Flavor	Unflavored
Benefits	Immune Support
Diet	Gluten Free, Vegetarian
Allergens	Dairy, Gluten Free

How it compares

This product against the closest alternatives we track in vitamin d.

Product	Amazon rating	Ratings	ProductDome score
Designs for Health Vitamin D SynergyThis product	4.7 / 5	1,000	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

Frequently asked

Questions about the Designs 2854

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much vitamin D3 is in Designs for Health Vitamin D Synergy?

Each serving provides 2000 IU of vitamin D3 combined with vitamin K.

Does this product contain dairy?

Yes, dairy is listed among its allergens.

Is it vegetarian?

Yes, it is labeled vegetarian and gluten free.