Optimum Nutrition
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K2-D3 5000 60 Capsules
K2-D3 5000 60 Capsules
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Regular price
$36.99 USD
Regular price
Sale price
$36.99 USD
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The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
68/100
Standard
Six-dimension breakdown
Evidence
78
Formulation
70
Manufacturing
60
Safety
62
Transparency
65
Sustainability
55
Why this scored 68/100
The D3+K2 combination is one of the best-evidenced micronutrient pairings — vitamin D3 for calcium absorption and immune modulation (LeBoff 2022 VITAL bone analysis, Martineau 2017 D3 respiratory infection meta), and K2 (MK-7 form) to direct calcium into bone rather than arterial soft-tissue (Knapen 2013 3-year osteocalcin trial). 5,000 IU D3 is a therapeutic dose appropriate for many deficient adults but excessive for repletion once serum 25(OH)D is optimized — labeling should ideally recommend baseline testing. K2 form (MK-4 vs MK-7) and mcg dose are the transparency question — MK-7 at 90-180 mcg is the well-studied form. Would move to Verified 75+ with MK-7 specification, mcg disclosure, and serum-monitoring guidance for the 5,000 IU D3 dose.
Last scored: Full rubric →
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 68 / 100
- Tier
- Standard
- Category
- Supplements
- Subcategory
- vitamins micronutrients, joint bone connective
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- hellohealth
- Tags
- hellohealth, Shopify Collective
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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