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Extra Virgin Cod Liver Oil (Liquid)

Omega · Liquid · 30 portioner#28 / 36 in Omega
6.4
Overall score · out of 10
6.4
Overall score · out of 10
Dose vs. studies6.4
Transparency7.0
Value6.4
Community6.0
Formulation5.0
Tier 4
Ingredient RCT (different dose)
The ingredient was tested in an RCT but at a different dose, or only in animals.
Redaktionellt score, paid $0 No affiliate link Tested by independent lab No public analysintyg Sample received: No
How we scored this product Show the full breakdown
Composite How this 6.4 is built. 0.55 × 6.4 + 0.20 × 7.0 + 0.10 × 6.4 + 0.10 × 6.0 + 0.05 × 5.0 = 6.4 out of 10. Säkerhet caps applied after. 6.4
6.4 composite
Dose vs. studies55%6.4
Transparency20%7.0
Value10%6.4
Community10%6.0
Formulation5%5.0

Bevisning 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. Säkerhet 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 →

Question 1

Does the molecule work?

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

The single best-supported longevity supplement most people don't take enough of.

9 landmark RCTs · US: Dietary supplement + Rx (Vascepa/Lovaza) · EU: Food supplement, health claims authorised

Fat-soluble vitamin; toxicity concerns at high doses.

No landmark RCTs listed · US: Dietary supplement · EU: Food supplement (limit 800 μg RE)

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
60% av studiedosen
Below the full trial dose
Cost at trial dose
$2.64/day at trial dose
What one effective daily dose actually costs
Transparency
7.0/10 · No public analysintyg
Independent batch testing confirmed
Consumer signals
1,238 reviews across platforms · 4.4/5 · medium confidence
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

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

Säkerhet signals
Exceeds upper intake limit — vitamin-a
3.0 mg per portion exceeds the tolerable upper intake level of 3.0 mg/day. UL is 3,000 μg RAE/day (3 mg/day) for adults from preformed vitamin A (retinol/retinyl esters). Chronic excess intake is associated with hip fracture, liver toxicity, and teratogenic effects. Beta-carotene is not subject to this UL.
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Atrial fibrillation signal — omega-3
A metaanalys of RCTs found that high-dose EPA-dominated omega-3 supplementation (≥1 g/day) was associated with a 25% relative increase in atrial fibrillation risk. Risk appears dose-dependent and higher with pure EPA formulations.
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Drug interaction risk — omega-3
High doses (2-15 g/day) may increase bleeding time; caution with anticoagulants/antiplatelet drugs.
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Drug interaction risk — vitamin-a
Retinoids may interact with oral contraceptives (reduced effectiveness), tetracyclines (increased intracranial pressure risk), and anticoagulants. Avoid high-dose preformed vitamin A during pregnancy.
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No public analysintyg
Certificate of Analysis not published
Without a public analysintyg, batch purity and potency cannot be independently verified.
Buyer complaints
Amazon: expensive; Amazon: fishy taste for some
Recurring themes from consumer review platforms.
Redaktionellt verdict

Quick verdict

6.4 / 10
Best for
Basic coverage
Avoid if
Only 60% av studiedosen, No public analysintyg
Full-dose status
60% av studiedosen
Pris/month
$48
COA status
Not public
Biggest caveat
Dose is 60% of the trial dose.
Nearest alternatives

The numbers

Pris
$48
per bottle · 30 portioner
Dose vs. research
Below trial dose 60%
of published effective dose
$ / day at studied dose
$2.64
what one effective daily dose costs
$ / g active
$1.32
per gram of active substance
Independently checked

Data verification

Pris
$48
Verified n/a
Dose
60% av studiedosen
Verified n/a
COA status
Not public
Verified n/a
Bevisning grade
AAA
Per-ingredient breakdown
AOmega-3 (EPA/DHA)
AVitamin A
AVitamin D3
Verified n/a

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

What's inside

Ingredient
Dose in this product
Trial dose
Bevisning
Omega-3 (EPA/DHA)
The single best-supported longevity supplement most people don't take enough of.
1210.0 mg 60% av studiedosen
2000 mg
Vitamin A
Fat-soluble vitamin; toxicity concerns at high doses.
3.0 mg 333% av studiedosen
0.9 mg
Vitamin D3
Cheap, safe, and correcting a deficiency you probably have.
0.01 mg 20% av studiedosen
0.05 mg
4.4 /5
High confidence Strong value signal
1,238 reviews across 3 platforms (4 sources)
Source diversity: 77%
AmazonRedditTrustpilot
Praiseexcellent product qualityreliable shipping and communication
Complaintsexpensivefishy taste for some
Last checked: 2026-08-07

Consumer signals

4.4 out of 5 across 1,238 verified reviews on 4 platforms.

Medium confidence

Consumer sentiment compiled from 4 public sources; no dedicated iHerb listing was found so an additional Amazon review source was used.

8 reviews · positive sentiment

Praiseexcellent product qualityreliable shipping and communication
ThemesTrustpilot reviewers praise consistent quality and reliable international shipping and communication.

Compiled from Trustpilot listing located during research; verified at build time.

1,230 reviews · 4.4/5 · positive sentiment

Praiserich, natural quality oilstrong source of vitamin D
Complaintsexpensivefishy taste for some
ThemesAmazon reviewers consistently praise the oil's quality and vitamin content, with price and fishy taste as the main complaints.

Compiled from Amazon listing located during research; verified at build time.

positive sentiment

Praiseonly cod liver oil that isn't rancid for some buyers
ThemesNo dedicated iHerb listing was found; a detailed Amazon customer review substitutes here, describing it as uniquely non-rancid among cod liver oils.

Compiled from Amazon listing located during research; verified at build time.

4 threads discussed · positive sentiment

Praiseconsidered the best cod liver oil brand by manysafe for young children
ThemesReddit communities consistently recommend Rosita as the best cod liver oil brand, including for young children.

Compiled from Reddit listing located during research; verified at build time.

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

What others say (unverified)

No external reviews aggregated yet for this product.

Important to know
Omega-3 (EPA/DHA)Ethyl ester (cheaper) absorbs worse than triglyceride form unless taken with fatty meal. Check third-party oxidation testing (TOTOX <10).
Vitamin ADo not exceed 10,000 IU/day. Pregnancy hazard.
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.

Redaktionellt notes

510mg EPA + 700mg DHA per 5ml serving from raw, unprocessed Norwegian cod liver oil. Source: Wild cod (Gadus morhua) from Norwegian fjords (Dønna) (wild-caught) independently Eurofins tested. Form: raw/unrefined. Contains natural vitamins A and D. antioxidant: natural vitamin E. Consumer sentiment (mostly positive): Users praise the raw, unrefined quality and natural vitamin content; price and strong fish taste are drawbacks. Bevisning reviewed: 2026-08-07; refresh due: 2027-02-07.

In plain language

Why this scored this way

This Rosita Extra Virgin Cod Liver Oil (Liquid) scores 6.4, making it below the site average. It delivers the full 3.0mg trial dose of Vitamin A with grade A evidence (strong human trial data). At $2.64/day it's among the more expensive options in Omega.

What drives the score up

  • Dose-evidence score of 6.4 shows decent alignment with trial doses.
  • Tested by independent lab (transparency 7.0).
  • Vitamin A is dosed at the full research level with grade A evidence (strong human trial data).
  • Omega-3 (EPA/DHA) has grade A evidence and is dosed at 60% of the trial dose.
  • Omega-3 (EPA/DHA) adds grade A evidence at 60% of the trial dose.

What drags it down

  • Vitamin D3 (0.01mg is 20% of the 0.05mg trial dose) is significantly under-dosed.
  • Vitamin A (3.0mg is 333% of the 0.9mg trial dose) is well above the trial dose. More is not always better.
  • No public analysintyg available for independent verification.
  • Limited consumer feedback (community score: 6.0).
  • At $2.64/day it's on the expensive side.

Why you'd choose it

  • You want Vitamin A from a Rosita product.
  • You want a tested by independent lab product.

Why you might skip it

  • You want a product with a publicly available CoA.
  • You need a full trial dose of vitamin d3 (this product under-doses it).
  • You want a standard dose of vitamin a (this product is well above it).

Verification layer

Every claim on this page carries a verification stamp. We track how many independent source types confirm each fact, and when we last checked. Bevisning reviewed: 2026-08-07; refresh due: 2027-02-07.

Overall verification

Verification relies on manufacturer claims without independent batch testing. Consumer signal is present.

Source checked
Checked · 2 sources
Species and region verified: Wild cod (Gadus morhua) from Norwegian fjords (Dønna) (wild-caught) independently Eurofins tested
No named third-party sustainability certification found
No public batch report
Claim only · No independent source
No independent batch report found
Repeated consumer theme
Repeated theme · 1 source
Same tolerability, complaint, or praise pattern found across multiple public consumer discussions
Go deeper

Where this sits

Varumärke owners

Spot an error?

If you are the manufacturer or brand owner of Extra Virgin Cod Liver Oil (Liquid) 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 primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

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