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Layer 1 · Decision
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Vitamin D3 5000

Vitamin · Softgel · 120 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Vitamin per serving
Vitamin D3 125 µg
Form
Softgel
List price (catalog, USD)
$24.95
Price per serving
$0.21List price divided by servings per container. A per-day cost only if the label serving is once daily.

Reading notes

  • Vitamin amounts shown in µg/mg. Labels may use IU.
Full label record: servings, testing, ingredients
Servings per container
120
Catalog monthly estimate
$6.24
Testing disclosure
Brand lists third-party testing and a public certificate of analysis (CoA)Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Vitamin D3125 µg

What to check on the label

  • The unit on the label (µg, mg or IU) before comparing with the figures here.
  • For K2, which form is named (MK-4 or MK-7). The catalog stores the total.
  • Liquid drops: how many drops the label calls a serving, since the container count depends on it.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

8.4/10
Overall score
#1 / 7 in Vitamin

Full trial dose, public lab certificate, tested by independent lab.

Read the evidence (1 study)
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
See the 1 supporting study
How we scored this product Show the full breakdown
Composite How this 8.4 is built. 0.50 × 10.0 + 0.20 × 9.0 + 0.10 × 10.0 + 0.10 × 8.0 + 0.05 × 8.5 + 0.05 × 7.9 = 8.4 out of 10. Safety caps applied after. 8.4
8.4 composite
Dose vs. studies50%10.0
Transparency20%9.0
Value10%10.0
Formulation10%8.0
Safety5%8.5
Community5%7.9

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

8.4 / 10
Best for
Full trial dose, Public lab certificate, Budget-friendly
Avoid if
No major red flags
Full-dose status
Meets trial dose
Price/month
$6
COA status
Public
Biggest caveat
Vitamin D3 (0.125mg is 250% of the 0.05mg trial dose) is well above the trial dose. More is not always better.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $24.95
Last price check: Sep 01, 2026
Layer 2 · Context

Our summary

Nordic Naturals Vitamin D3 5000 is a single-ingredient, olive-oil-carrier softgel delivering 125 mcg (5000 IU) of cholecalciferol per serving, five times the US Daily Value and above the NIH-listed adult Tolerable Upper Intake Level (4000 IU/day) if taken daily without monitoring. Vitamin D3 itself is among the most heavily studied supplement ingredients, and a dose-matched deficiency-correction RCT found 5000 IU/day substantially more effective than 1000 IU/day at restoring sufficient blood levels in deficient adolescents, giving reasonable confidence that this specific dose is pharmacologically active for correcting deficiency. However, the largest and most rigorous long-term outcomes trial (VITAL, using a lower 2000 IU dose) found no significant reduction in cancer or cardiovascular disease at the population level over 5.3 years, tempering marketing implications that high-dose vitamin D meaningfully prevents chronic disease in vitamin D-replete adults. Mood-related claims have some supporting meta-analytic evidence but remain contested in the broader literature. No clinical trial has tested this exact branded product, and no independent third-party lab result specific to this SKU's potency was located, though the brand's manufacturing facility carries NSF-GMP certification and publishes lot-searchable Certificates of Analysis.
In plain language

Why this scored this way

This Nordic Naturals Vitamin D3 5000 scores 9.4, making it one of the highest-scoring products on the site. It delivers 0mg of Vitamin D3, inside the studied range of 0–0mg with grade A evidence (strong human trial data). Transparency is a clear strength (score: 9.0), with third-party testing and a public lab certificate. At $0.08/day it's priced well for what you get.

What drives the score up

  • Dose-evidence score of 10.0 reflects good alignment with trial doses.
  • Quality transparency of 9.0: tested by independent lab with a public lab certificate.
  • Value score of 10.0 at $0.08/day.
  • Vitamin D3 is dosed at the full research level with grade A evidence (strong human trial data).

What drags it down

  • Vitamin D3 (0.125mg is 250% of the 0.05mg trial dose) is well above the trial dose. More is not always better.

Why you'd choose it

  • You want good value at $0.08/day.
  • You want Vitamin D3 from a Nordic Naturals product.
  • You prioritise tested by independent lab products with public lab certificates.

Why you might skip it

  • You want a standard dose of vitamin d3 (this product is well above it).
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Vitamin D3

Cheap, safe, and correcting a deficiency you probably have.

1 landmark RCT · US: Dietary supplement · EU: Food supplement (upper limit 100 μg/day)
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% of trial dose
Meets or exceeds the published effective dose
Cost at trial dose
$0.08/day at trial dose
What one effective daily dose actually costs
Transparency
9.0/10 · Public lab certificate (quality: not assessed)
Independent batch testing confirmed
Consumer signals
52 reviews across platforms · 4.7/5 · high confidence
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

Safety signals
Exceeds upper intake limit — vitamin-d3
0.1 mg per serving exceeds the tolerable upper intake level of 0.1 mg/day. UL is 100 mcg/day (4,000 IU/day; equivalent to 0.1 mg) for adults. Toxicity causes hypercalcemia and hypercalciuria; extremely high serum levels can lead to kidney failure and arrhythmias.
Read more
Safety flag
vitamin-d3 dose 0.125 mg exceeds UL (0.100 mg)
Dose or interaction risk detected. See ingredient page for details.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Vitamin D30.125 mgEvidence A

Cheap, safe, and correcting a deficiency you probably have.

Read about Vitamin D3 →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$25
per bottle · 120 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$0.08
what one effective daily dose costs
$ / g active
$1663.33
per gram of active substance
Independently checked

Data verification

COA status
Public
Evidence grade
A
Per-ingredient breakdown
AVitamin D3

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
Vitamin D3
Cheap, safe, and correcting a deficiency you probably have.
0.125 mg 250% of trial dose
0.05 mg
4.1 /5
High confidence
52 reviews across 4 platforms (5 sources)
Source diversity: 100%
Examine.comRedditReview aggregatorTrustpilot
PraiseA Reddit thread recommending vitamin D gummies names Nordic Naturals as a reputaIn a thyroid-focused subreddit, one user says they take Nordic Naturals Vitamin
Last checked: 2026-08-20

Consumer signals

4.74 out of 5 across 52 verified reviews on 6 platforms.

High confidence

Auto-gathered from public review platforms via pplx_sdk fetch.

1 thread discussed · positive sentiment

Praise

A Reddit thread recommending vitamin D gummies names Nordic Naturals as a reputable, frequently mentioned brand alongside Carlson. The sa...

Compiled from a Reddit r/SupplementQuest listing located during manual research; not independently re-verified against the live page at build time.

1 thread discussed · positive sentiment

Praise

In a thyroid-focused subreddit, one user says they take Nordic Naturals Vitamin D3 gummies at 1000 IU daily as part of their routine, men...

Compiled from a Reddit r/Hashimotos listing located during manual research; not independently re-verified against the live page at build time.

positive sentiment

Praise

Examine's vitamin D page says supplementation is linked to better immune and bone health, and may lower cancer mortality and diabetes ris...

Compiled from an Examine.com listing located during manual research; not independently re-verified against the live page at build time.

4 reviews · 4.0/5

48 reviews · 4.8/5 · positive sentiment

3,974 reviews · 4.8/5

Praiseeasy to swallow, no fishy tastetrusted brand, consistent lab qualityreports of improved bloodwork D levels over time
Complaintsoccasional melted or damaged softgels on arrival

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

Independent external anchors

Public sources on this same product, unrelated to NO1GEVITY. NIH DSLD is the US government's registered label database (shown verbatim). SuppCo.com is a separate, unaffiliated commercial site with no partnership or data-sharing arrangement with us. NO1GEVITY scores are computed independently of both.

Unaffiliated third-party site
SuppCo.com

SuppCo is a separate, unaffiliated supplement-tracking site with no partnership, data-sharing agreement, or business relationship with NO1GEVITY. We are not endorsed by them and they do not endorse us. The two facts below are individually verified against the manufacturer or NSF; the outbound link is provided only so readers can independently cross-check on a third-party site if they want to.

Tested by independent lab, Yes
NIH DSLD registered label
DSLD ID 187434, UPC 7 68990 01503 8
Serving size1 Softgel(s)
Servings per container120
Supplement Facts panel, verbatim
Vitamin D3125 mcg625% DV

What others say, with a source hierarchy

We treat external opinion very differently depending on where it comes from. Tier A is our strongest signal. Tier C is background sentiment only. Tier Rejected is what we excluded, listed openly so you can see what we discarded.

These reviews are aggregated from third-party sources, not written by NO1GEVITY. Each entry shows its source, retrieval date, and whether the source has an affiliate or paid relationship. We do not edit reviews to change their meaning. Disclosure policy.

Tier A

Independent deep reviews, lab tests, certificates of analysis

Our strongest external evidence. Long-form independent reviews, physical-product lab work, and third-party certifications.

ConsumerLab.com, Vitamin D Supplements Review
No affiliate relationship Not a paid placement

The vitamin D supplement category as a whole tests reliably in ConsumerLab's independent reviews, a favorable general signal, though not a product-specific confirmation for this SKU.

Finding: ConsumerLab's ongoing vitamin D category testing has historically found the large majority of tested vitamin D products meet their label claims for potency, with only occasional outliers failing; specific results for this exact Nordic Naturals 5000 IU SKU in the most recent testing round were not confirmed in this research pass.
How we use it: Used as category-level, not product-specific, quality context.
ConsumerLab.com, Nordic Naturals brand overview
No affiliate relationship Not a paid placement

Positive brand-level reputation for quality, though the cited recognitions concentrate on the brand's fish-oil products rather than this vitamin D SKU specifically.

Finding: ConsumerLab has named multiple Nordic Naturals products 'Top Picks' across its testing history, primarily in the omega-3/fish-oil category rather than the brand's separate vitamin D line.
How we use it: Used as brand-level reputational context only.

Community threads and aggregate ratings

Additional public mentions we located, kept separate from the deep independent reviews above.

Reddit r/SupplementQuest
positive

A Reddit thread recommending vitamin D gummies names Nordic Naturals as a reputable, frequently mentioned brand alongside Carlson. The same thread notes Nordic Naturals gummies are slightly cheaper but contain more sugar per gummy than Carlson's.

Read source → Unverified · we received no payment for this listing
Reddit r/Hashimotos
positive

In a thyroid-focused subreddit, one user says they take Nordic Naturals Vitamin D3 gummies at 1000 IU daily as part of their routine, mentioned without complaint alongside other supplements.

Read source → Unverified · we received no payment for this listing
Examine.com
positive

Examine's vitamin D page says supplementation is linked to better immune and bone health, and may lower cancer mortality and diabetes risk, but benefits mostly show up when correcting an existing deficiency. Examine notes an FAQ page pegs global vitamin D insufficiency at up to 50 percent of the population.

Read source → Unverified · we received no payment for this listing
Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence, what actually backs this product

Longevity brands rarely test their exact finished product. We separate what's tested from what's inferred.

Strongest evidence tier
Tier 3Ingredient RCT (matching dose)
4 studies mapped
Tier 3Ingredient RCT (matching dose)
Comparison of Different Vitamin D Supplementation Strategies for Correction of Deficiency in Adolescents
Modi M, Modi K, et al. (as reported) · 2016 · Journal of Pediatrics · n=183 · 1000 IU/day, 5000 IU/day (this product's exact dose), or 50,000 IU/week for 8 weeks · 8 weeks
ingredient-levelpeer-reviewed
5000 IU/day achieved vitamin D sufficiency (25(OH)D ≥20 ng/mL) in 56% of participants, versus only 2% on 1000 IU/day; the weekly 50,000 IU regimen performed comparably to or better than the daily 5000 IU arm.
This trial used the exact dose in this product (5000 IU/day, though in adolescents rather than the general adult population this product targets) and is the strongest direct dose-match evidence located, though it is not a trial on this specific branded softgel.
Conflicts: None identified
Tier 3Ingredient RCT (matching dose)
High-Dose Vitamin D3 Supplementation in Adults With COVID-19 (5000 IU vs 1000 IU)
Sabico S, Enani MA, et al. · 2021 · Nutrients · n=69 · 5000 IU/day (this product's exact dose) vs. 1000 IU/day for up to 2 weeks or until discharge · Up to 2 weeks
ingredient-levelpeer-reviewed
The 5000 IU/day group had significantly faster resolution of cough and gustatory sensory loss and a shorter time to reach 25(OH)D concentration ≥50 nmol/L compared with the 1000 IU/day group; no significant difference in overall hospital discharge timing.
Dose-matched to this product, but the population (acutely ill hospitalized COVID-19 patients) and short 2-week duration are far removed from the general wellness/maintenance use case most buyers of this over-the-counter softgel have in mind. Results should not be read as evidence this product treats or prevents COVID-19.
Conflicts: None identified in available excerpt
Tier 4Ingredient RCT (different dose)
Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease (VITAL trial)
Manson JE, Cook NR, Lee IM, et al. · 2018 · New England Journal of Medicine · n=25871 · 2000 IU/day vitamin D3 (less than half this product's 5000 IU dose) vs. placebo · Median 5.3 years
ingredient-levelpeer-reviewed
No significant reduction in invasive cancer incidence or major cardiovascular events versus placebo at the population level over 5.3 years.
The largest and most rigorous long-term vitamin D outcomes RCT to date used less than half this product's dose, so it does not directly test this product's dosing strategy, but it is the most important null result any high-dose vitamin D marketing claim about long-term disease prevention must be weighed against. A secondary analysis found a 17% reduction in advanced/metastatic cancer risk (PMID 33206192, HR 0.83), stronger in normal-BMI participants (HR 0.62), suggesting possible benefit in subgroups not captured by the null primary result.
Conflicts: Funded by NIH; Pharmavite donated vitamin D3 and matching placebo but had no role in study design or analysis
Tier 5Mechanistic / animal / marketing
Vitamin D Supplementation and Depression in Adults: Systematic Review and Meta-Analysis
Vellekkatt F, Menon V · 2019 · Journal of Postgraduate Medicine · Varied doses across pooled trials, generally higher-dose regimens (many ≥4000 IU/day or high-dose bolus) · Varied across pooled trials
ingredient-levelpeer-reviewed
Vitamin D supplementation, particularly at higher doses, was associated with significant improvement in depressive symptoms compared with placebo, though heterogeneity across studies was high.
Relevant to marketing claims about 'mood support', but this is a pooled ingredient-level analysis across varied doses and populations (not general healthy adults, and not this specific 5000 IU product), and the mood-supplement literature for vitamin D remains mixed across other meta-analyses not all of which found significant effects.
Conflicts: None identified
Evidence

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

Claim check, vendor claims vs. our reading of the evidence

Not medical advice. We list the strongest claims made by the brand and check each against traceable evidence.

Supported
“High-potency 5000 IU vitamin D3 for optimal blood levels”
Dose-matched RCT evidence (Modi et al. 2016) found 5000 IU/day substantially outperformed 1000 IU/day at correcting vitamin D deficiency in a deficient population, supporting the premise that this higher dose is more effective at raising blood 25(OH)D levels than lower-dose standard multivitamin amounts. However, 'optimal' blood levels is a debated clinical threshold, and this dose exceeds the NIH-listed adult Tolerable Upper Intake Level (4000 IU/day) if taken daily long-term without monitoring.
Partial support
“Supports healthy immune function”
Vitamin D receptors are present on immune cells and vitamin D deficiency is associated with increased infection susceptibility in observational data, and the dose-matched COVID-19 RCT (Sabico et al. 2021) found faster symptom resolution at 5000 IU vs 1000 IU in deficient, infected patients. However, this is a narrow acute-illness finding in a specific population, not general evidence that this product prevents infections or broadly 'supports immune function' in healthy, vitamin D-sufficient users.
Partially Supported
“Supports mood and emotional well-being”
A 2019 meta-analysis (Vellekkatt & Menon) found vitamin D supplementation, especially at higher doses, associated with improved depressive symptoms, offering some support. But the vitamin D-mood literature is genuinely mixed across other reviews not surveyed in this pass, the pooled trials used varied doses and populations (often clinically depressed patients, not general wellness users), and no trial evaluated this specific product or a healthy general population's mood outcomes.
Supported
“Supports bone and dental health”
Vitamin D's role in calcium absorption and bone mineralization is well-established, foundational nutritional science (not merely a marketing claim), consistent with decades of research and FDA-recognized qualified health claims for the vitamin D/calcium/bone health relationship at the ingredient level.

Regulatory status

Rules change often. We record when we last verified each row. See the full regulatory timeline →

What we could not verify

We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.

  • No published clinical trial exists on this exact branded softgel; all supporting evidence is at the vitamin D3 ingredient/dose level from trials using different manufacturers' capsules or in different populations (adolescents, hospitalized COVID-19 patients).
  • No independent third-party lab test (ConsumerLab, Labdoor, or similar) specific to this SKU's actual vitamin D3 potency was located in this research pass, this product is not covered by the brand's IFOS fish-oil certification program since it contains no fish oil.
  • EU/UK member-state-specific retail restrictions on over-the-counter sale of a 5000 IU (125 mcg) single-dose vitamin D product were not individually verified for each market where Nordic Naturals sells.
  • The specific commercial source/manufacturer of the raw cholecalciferol used in this product (e.g., lanolin-derived, as is standard for most vitamin D3) is not disclosed beyond 'vitamin D3 (cholecalciferol) in olive oil' on the consumer label.
  • No brand-published data confirms long-term (multi-year) blood 25(OH)D trend outcomes specifically among users of this product, as opposed to short-term deficiency-correction trial data on the ingredient generally.
  • Trustpilot aggregator
    4 reviews

    This is a brand-level customer-service profile for nordic-naturals; it does not isolate Vitamin D3 5000.

    verified 2026-08-07Open source →
  • Reddit r/Supplements community forum
    mixed sentiment

    Community discussion exists, with the dominant concern focused on the safety of 5,000 IU dosing and the need for periodic blood-level monitoring. No single Reddit thread is treated as a representative product review.

    no direct URLchecked 2026-08-07
Important to know
Vitamin D3Taking without fat = poor absorption. High-dose D3 without K2 can drive calcium into arteries. D2 form (ergocalciferol) is inferior for raising blood levels.
Vitamin D3High doses (>4000 IU/day) may cause hypercalcemia. Do not exceed upper intake limits without medical supervision.

Editorial notes

A straightforward, high-dose 5000 IU vitamin D3 softgel positioned for people who are deficient or get little sun exposure; priced at $24.95 for 120 mini softgels (~$0.21/serving), competitive for the category.

Brand owners

Spot an error?

If you are the manufacturer or brand owner of Vitamin D3 5000 and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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