Vitamin A · Vitamin A (retinyl palmitate)
Fat-soluble vitamin; toxicity concerns at high doses.
Short answer
Vitamin A (Vitamin A (retinyl palmitate)) is a foundational with evidence grade A, meaning it is well-supported by replicated human trials. We track 3 produkter containing Vitamin A. Typical doses range from 0.0708 to 3.0 mg per portion. The top-ranked product scores 6.5 out of 10 on our composite scale (dose, evidence, price, testing, transparency). Prices range up to $90.00 per månad.
Top Vitamin A produkter
| Product | Varumärke | Dose | Pris/mo | 3rd-party tested | Poäng |
|---|---|---|---|---|---|
| Seed DM-02 Daily Multivitamin | 0.9 mg | $39.99 | Yes | 6.5 | |
| Extra Virgin Cod Liver Oil (Liquid) | 3.0 mg | $47.99 | Yes | 6.4 | |
| Mosaic | 0.0708 mg | $90.00 | No | 5.6 |
Scores are editorial judgments, not a scientific standard. Se how we score.
What it is
Essential for vision, immune function, skin. Overdose (>10,000 IU/day) causes toxicity, especially in pregnancy.
Why people take it
Correcting deficiency important in restricted diets. Casual megadosing dangerous.
Our verdict
Get from diet (liver, eggs, orange vegetables via beta-carotene). Only supplement if diagnosed deficient.
Structure & class
Retinol / retinyl esters.
Mechanism & clinical data
Teratogenicity above 10,000 IU/day in pregnancy.
Pharmacokinetics
Days.
Dose & forms
What to watch out for
Do not exceed 10,000 IU/day. Pregnancy hazard.
Säkerhet limits and interactions
When a product exceeds the UL or contains an ingredient with clinically significant interactions, a "Review advised" flag appears on its product page and links here.
Source: https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/
Where this dose comes from
The trial dose above is our editorial pick from the published human trials for this ingredient. We choose the dose that the best-available studies used on the endpoint most relevant to longevity. The range shows the lowest and highest doses tested in published trials. The landmark studies below are the papers we read to set it. You can click through and check our work.
When new trials publish, our automated sweeps flag them. If a new study materially changes the dose, we update it through editorial review and record the old dose, new dose, and the triggering study in every affected product's recommendation history. The dose is never changed automatically.
Regelverk status
Timeline
Regelverk events, evidence grade changes, and key research milestones for Vitamin A, most recent first. Every entry links to its primär source.
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EU Court sharpens the bar for botanical health claimsA Court of Justice of the European Union ruling in april 2025 further tightened the requirements for how botanical ingredients (herbs, plant extracts) can be marketed with health claims in the EU, effectively removing much of the flexibility of the on-hold list.
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EU report identifies 117 supplement substances as potential health risksThe HoA Working Group on Food Supplements (26 European countries) published its first report evaluating 117 substances used in food supplements. Of these, 65 were assessed as likely novel foods, 6 were already regulated, 34 had insufficient data, and 12 were prioritized for Article 8 restriction under Regulation (EC) No 1925/2006. The 12 priority substances include ashwagandha, curcumin, melatonin, piperine, St. John's wort, coumarin, p-synephrine, maca, holy basil, Melaleuca, black cohosh, and L-tryptophan. The report drew on 1,500 RASFF alerts reviewed between 2017 and mid-2022.
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EU Health Claims Regulation adoptedRegulation (EC) No 1924/2006 laid down harmonised rules for nutrition and health claims made on foods, including supplements. Only claims listed in the EU Register of authorised claims can be used. Rejected botanical claims are held in a separate on-hold list.
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EU introduces the Novel Food RegulationRegulation (EC) No 258/97 required any food or food ingredient without a history of consumption in the EU before 15 maj 1997 to be authorised before being placed on the market. This is the framework that captures NMN, spermidine as a supplement ingredient, urolithin A, and many other longevity actives.
Landmark studies
Found in these produkter (3)
Alla produkter in our catalog that contain Vitamin A, ranked by our overall score. Ranking is editorial, never paid.
Buying guides and comparisons
Related ingredients
Se alla in Foundational →Molekyler in the same class, plus the actives most often formulated alongside Vitamin A in our catalogue.
Frequently asked questions
What is Vitamin A?
Essential for vision, immune function, skin. Overdose (>10,000 IU/day) causes toxicity, especially in pregnancy.
What dose of Vitamin A should I take?
The trial dose in published human studies is 0.9 mg per dag, with a range of 0.7 to 3 mg per dag. Always consult a qualified clinician before starting any supplement.
Is Vitamin A safe?
Do not exceed 10,000 IU/day. Pregnancy hazard.
What is the best Vitamin A supplement?
We track 3 produkter containing Vitamin A. The top-ranked product scores 6.5 out of 10 on our composite scale, which evaluates dose, evidence, price, third-party testing, and transparency. See the comparison table above. Scores are editorial judgments, not a scientific standard.
What is the evidence grade for Vitamin A?
Vitamin A has evidence grade A, meaning it is well-supported by replicated human trials. Grade A means replicated human RCTs with hard endpoints. Grade B means human RCTs with biomarker outcomes. Grade C means mixed or small human trials. See our evidence grading methodology.
Data verification
Bevisning grades are reviewed when new human RCTs are published. Product counts update automatically as new produkter are added. Dose ranges reflect published trial data, not brand recommendations. Read how we verify.