Optimum Nutrition
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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 →
Calcium + D3 + K addresses the isolated-calcium cardiovascular concern (Bolland 2015) — K2 in particular helps direct calcium to bone rather than arterial walls (Knapen 2013). This 3-in-1 approach is the clinically-forward way to supplement calcium. Verified tier — form disclosure (K1 vs K2-MK4 vs K2-MK7) would strengthen further. Would move higher with named K2-MK7, disclosed elemental Ca, and citrate over carbonate.
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.
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Calcium with Vitamins D & K - 3 in-1 Formula, categorized under Joint, bone & connective tissue health in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
70/100 overall — Verified tier (70–84 band). Per-dimension breakdown: Evidence 72, Formulation 72, Safety 70, Transparency 68, Manufacturing 65, Sustainability 50. Scored as of 2026-08-24.
Calcium + D3 + K addresses the isolated-calcium cardiovascular concern (Bolland 2015) — K2 in particular helps direct calcium to bone rather than arterial walls (Knapen 2013). This 3-in-1 approach is the clinically-forward way to supplement calcium. Verified tier — form disclosure (K1 vs K2-MK4 vs K2-MK7) would strengthen further. Would move higher with named K2-MK7, disclosed elemental Ca, and citrate over carbonate.
Strongest: Evidence at 72/100 (quality of published RCT support for the active ingredients at the label dose) and Formulation at 72/100 (dose adequacy, bioavailability form, and ingredient redundancy). Weakest: Manufacturing at 65/100 (third-party testing, GMP compliance, and facility audit status) and Sustainability at 50/100 (sourcing practices, packaging, and corporate practice). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
No third-party certifications (NSF, USP, ConsumerLab, or equivalent) were on record at the time of scoring. This affects the Manufacturing dimension score. The manufacturer may test internally or have obtained certification more recently — check the current product label for the most up-to-date information.
The top-ranked joint, bone & connective tissue health product in the Vyvata catalog is currently Albion Magnesium & Calcium with Vitamins D3 & K2 at 76/100. See the full ranked list of 199 scored products in this subcategory at https://vyvata.com/pages/best-joint-bone-and-connective-tissue-health-supplements-ranked.
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=Calcium%20with%20Vitamins%20D%20%26%20K%20-%203%20in-1%20Formula),Google(https://www.google.com/search?q=Calcium%20with%20Vitamins%20D%20%26%20K%20-%203%20in-1%20Formula+reviews),Reddit(https://www.reddit.com/search/?q=Calcium%20with%20Vitamins%20D%20%26%20K%20-%203%20in-1%20Formula%20review),andTrustpilot(https://www.trustpilot.com/search?query=Calcium%20with%20Vitamins%20D%20%26%20K%20-%203%20in-1%20Formula).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
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.
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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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