Vitamin E
What the European Food Safety Authority and the United States National Institutes of Health have published about vitamin E intake, and what the catalogue records. Reference figures and citations only.
Stacky is an organisational tool, not a medical device. It does not provide medical advice, and nothing on this page says what vitamin E does. Talk to a doctor or pharmacist before starting, stopping or changing what you take.
Published intake references
Each figure is one authority’s published value, with the kind of figure and the people it applies to as that authority stated them. Where the EU and the US differ, both are shown and neither is averaged or converted. Only a tolerable upper intake level sets a ceiling. A recommended or adequate intake is context, not a limit.
EUEuropean Union — EFSA
Unit: as alpha-tocopherol; EFSA publishes in mg alpha-tocopherol, not IU. 1 IU = 0.67 mg natural (RRR-) or 0.45 mg synthetic (all-rac-) alpha-tocopherol. EUEFSA
Unit: as alpha-tocopherol; EFSA publishes in mg alpha-tocopherol, not IU. 1 IU = 0.67 mg natural (RRR-) or 0.45 mg synthetic (all-rac-) alpha-tocopherol. EUEFSA
Unit: as alpha-tocopherol, the only physiologically active vitamer; EFSA restricts the UL to alpha-tocopherol. EFSA publishes vitamin E in mg alpha-tocopherol, not in IU. Label conversion: 1 IU = 0.67 mg RRR-alpha-tocopherol (natural, d-) = 0.45 mg all-rac-alp EUEFSA
USUnited States — NIH ODS / IOM
Unit: as alpha-tocopherol; published in mg, not IU. 1 IU = 0.67 mg natural (RRR-) or 0.45 mg synthetic (all-rac-) alpha-tocopherol, so 15 mg = approx. 22 IU natural. USNIH ODS
Unit: as alpha-tocopherol; applies to any form of supplemental alpha-tocopherol. The IOM/NASEM publishes in mg alpha-tocopherol, not in IU. 1 IU = 0.67 mg RRR-alpha-tocopherol (natural, d-) = 0.45 mg all-rac-alpha-tocopherol (synthetic, dl-), so the 1,000 mg UL USNIH ODS
To cite a figure, cite the authority’s document linked on its card, and this page as where you read it: stacky-app.com/substances/vitamin-e, retrieved 13 November 2026. Every card has its own address: add #eu-ai-2 to the page URL for the first one.
Products in Stacky’s catalogue containing Vitamin E
13 products whose label declares vitamin E, listed by brand and drawn as the app draws them. Amounts are the manufacturer’s printed figures; Stacky has measured nothing and ranks nothing.
How it is recorded
What the app records so it can schedule a dose. None of it is advice.
Forms recorded: Softgel, Capsule.
Default food note in the app: with food.
Recorded interactions
How Stacky summarises what a named source says about vitamin E taken alongside another substance: absorption and nutrient status only. The category and the summary are Stacky’s words; each row links to the source, and the source’s own wording governs. A row without one is not published, and neither is one whose source description names a disease or clinical condition: 1 such row for Vitamin E stays in the app. None of these says whether a combination is good or bad.
| Stacky’s category | Summary, in Stacky’s words | Source |
|---|---|---|
| Documented relationship with Omega-3 | The amount of vitamin E needed to prevent lipid peroxidation rises with the amount of polyunsaturated fat consumed, which is why many fish oil products include vitamin E. LPI notes that high vitamin E intakes have not been shown to lower markers of oxidative damage when EPA and DHA intakes increase, though some experts still recommend raising vitamin E alongside omega-3. Scope the source gave: increases with the amount of polyunsaturated fat consumed. |
Linus Pauling Institute Checked 6 Aug 2026 |
| Documented relationship with Selenium | Selenium acts through selenoenzymes alongside vitamin E, regenerating it from its oxidised form. The two are frequently formulated together for this reason. | Linus Pauling Institute, Selenium Checked 6 Aug 2026 |
| Documented relationship with Vitamin C | Vitamin C regenerates other antioxidants in the body, including alpha-tocopherol. In a trial in smokers and non-smokers, vitamin C supplementation reduced the rate of vitamin E loss from plasma. | NIH ODS Checked 6 Aug 2026 |
| Reduces absorption or status of Vitamin K2 | Large doses of vitamin E antagonise vitamin K, apparently by inhibiting vitamin K-dependent carboxylase activity. In adults with normal coagulation status, 1,000 IU a day of vitamin E for 12 weeks decreased carboxylation of prothrombin, a vitamin K-dependent protein. Scope the source gave: large doses of vitamin E; one study used 1,000 IU a day for 12 weeks. |
Linus Pauling Institute Checked 6 Aug 2026 |
Indexed studies
Stacky has 5 papers indexed against vitamin E, and none of them is published here. A study reaches this page only if its own title names Vitamin E and does not name a disease or clinical condition. None of the 5 passes that rule. They remain in the app. How this list is built →
About this page
Stacky is a supplement tracking app. It renders what you take and what published sources say about it; it does not tell you what to take. Every figure on this page names the authority that published it and links to that authority’s own page.
Not on this page: a dose of our own, a grade, a verdict on whether vitamin E works, or any statement that it treats, prevents or improves a condition. How these pages are built →
Figures are read from the authorities’ published tables and can go out of date when those tables are revised. If one here is wrong, tell us at support@stacky-app.com and we will check it against the source.