Vitamin E and the eyes: what may be claimed
Futures Nutrition Editorial Team · 13 August 2026
Vitamin E and the eyes: what may be claimed
13 August 2026
The short answer: in the EU there is exactly one approved health claim for vitamin E, and its wording is "Vitamin E contributes to the protection of cells from oxidative stress." Eyes are not mentioned in it — the sentence applies to cells in general. The claim "Protects the lens" was submitted specifically, assessed and refused (EU Register of nutrition and health claims, entry 167, EFSA opinion 2010;8(10):1816). Vitamin E is nevertheless in almost every eye supplement. The reason is not an approved claim but a large American study in which vitamin E was part of a combination.
Anyone who turns a pack over therefore sees the same picture again and again: vitamin E appears in the nutrition table, but the marketing text beside it talks about vision and then means vitamin A or zinc. That is not a coincidence; it is the difference between what is inside and what may be said about it.
The one approved claim — in its exact wording
The relevant text is Regulation (EU) No 432/2012 of 16 May 2012. It lists the approved health claims in their official wording, and departing from it is not permitted. For vitamin E there is a single entry:
Vitamin E contributes to the protection of cells from oxidative stress.
In the EU Register this claim is linked to the health relationship "protection of DNA, proteins and lipids from oxidative damage" (entries 160, 162 and 1947, EFSA opinion 2010;8(10):1816). Three classes of substances in the body are meant, then, not one organ. The German Nutrition Society (DGE) describes the function in similarly factual terms: vitamin E acts as a fat-soluble antioxidant, protects above all the unsaturated fatty acids in the body and stabilises cell membranes.
The condition of use is recorded in the register alongside the claim: the food must be at least a "source of vitamin E". What that means in figures is set out in the Annex to Regulation (EC) No 1924/2006 read together with Annex XIII to Regulation (EU) No 1169/2011 — 15 per cent of the nutrient reference value. The reference value for vitamin E is 12 mg, so the threshold is 1.8 mg per 100 g or per daily portion of a food supplement. Supplements are almost always well above that; the condition is rarely the problem.
What was refused — and why the lens is among it
More interesting than the one approved claim is the list of refused ones. It appears in the same register, in the applicants' original wording, each time with the reasoning that it is "not substantiated on the basis of the scientific evidence assessed".
| Claim as submitted (original wording) | Health relationship | Entry | Status |
|---|---|---|---|
| "Protects the lens." | maintenance of normal vision through protection of the eye lens | 167 | not authorised |
| "Vitamin E is an antioxidant that protects the body's cells." | immune system function | 161 | not authorised |
| "Can neutralise free radicals and help maintain a healthy heart." | normal cardiac function | 166 | not authorised |
| "Helps memory and perception retention, especially in the elderly." | cognitive function | 183 | not authorised |
| "Necessary for healthy teeth, bones, hair, skin and nails" | skin, hair, nails, bones, teeth | 164 | not authorised |
| "Regeneration of vitamin C" | regeneration of the reduced form of vitamin C | 203 | not authorised |
| "Wichtig für Blutfließeigenschaften." | normal blood flow | 216 | not authorised |
All of these entries go back to the same collective EFSA opinion (2010;8(10):1816). Two rows are worth a second look.
The first is the lens. There is no eye claim for vitamin E not because nobody thought of one — there is none because one was applied for and the evidence submitted was judged insufficient. That is a difference: a point never applied for would still be open; this one has been decided. Anyone advertising protection of the eye lens by vitamin E today is using an expressly refused claim.
The second is entry 161. The sentence applied for — "Vitamin E is an antioxidant that protects the body's cells" — sounds almost like the approved one. It was refused all the same, because it was submitted under the health relationship "immune system function". That is precisely where it shows why the official wording has to be taken literally: what decides is not the approximate meaning but the combination of formulation and assigned bodily function. Which nutrients may carry a vision claim at all is set out in Eye nutrients: which claims are approved.
Why vitamin E is in almost every eye supplement anyway
The answer is AREDS. In the Age-Related Eye Disease Study, 3,640 participants aged between 55 and 80 received one of four daily regimens for an average of 6.3 years: antioxidants (500 mg vitamin C, 400 IU vitamin E, 15 mg beta-carotene), zinc (80 mg as zinc oxide plus 2 mg copper), both together, or placebo. For the combination of antioxidants and zinc, progression to advanced age-related macular degeneration was statistically significantly less frequent than under placebo (odds ratio 0.72; 99 % confidence interval 0.52–0.98). For zinc alone and for the antioxidants alone the difference was not significant (Arch Ophthalmol 2001;119(10):1417–1436, PMID 11594942).
The composition that has been copied worldwide ever since comes from this study — vitamin E included. It simply does not carry the claim people like to attach to it. What was measured was the effect of a combination in people who already had retinal changes. Which component accounted for how much of that cannot be derived from the study design.
For vitamin E on its own there is a separate trial, and it came out neutral: 1,193 healthy volunteers aged between 55 and 80 took 500 IU of vitamin E or placebo daily for four years. The frequency of early macular degeneration was 8.6 per cent against 8.1 per cent under placebo (relative risk 1.05; 95 % confidence interval 0.69–1.61), and for the late forms 0.8 against 0.6 per cent. The authors concluded that giving vitamin E affects neither the occurrence nor the progression (BMJ 2002;325(7354):11, PMID 12098721).
The successor AREDS2 tested the formula again in 2013 in 4,203 participants and added lutein plus zeaxanthin as well as DHA plus EPA. Neither reduced progression any further in the main analysis; what stood out instead was a higher number of lung cancer cases in the beta-carotene group, predominantly among former smokers (JAMA 2013;309(19):2005–2015, PMID 23644932).
Two things should be taken away from this section. First: these studies were carried out in people with an eye disease or at increased risk, and were supervised by ophthalmologists. Food supplements are not medicines, and claims about the prevention or treatment of disease are generally not permitted for foods (Regulation (EC) No 1924/2006, Article 12). Anyone with eye complaints belongs in an ophthalmology practice. Second: the doses used in these studies are far above what a combination supplement contains — the figures follow.
What is on the pack: mg, IU, RRR and all-rac
For few vitamins does the figure on the label need as much explaining. Vitamin E is not a single substance but a group: four tocopherols and four tocotrienols. In human plasma practically only α-tocopherol is retained, because the liver's transport protein has a high affinity for this form alone; the relative potency of α-, β-, γ- and δ-tocopherol stands roughly at 100:50:25:1. That is why all figures are calculated in α-tocopherol equivalents (EFSA/SCF, Tolerable Upper Intake Levels for Vitamins and Minerals, 2006, vitamin E chapter).
| Figure | Value | Source |
|---|---|---|
| Nutrient reference value (NRV) on the pack | 12 mg | Regulation (EU) No 1169/2011, Annex XIII |
| Threshold for "source of vitamin E" (15 % NRV) | 1.8 mg | Regulation (EC) No 1924/2006, Annex |
| DGE estimated value for adults (2024 derivation) | 8 mg RRR-α-tocopherol per day | DGE reference values |
| Estimated value for breastfeeding women | 13 mg per day | DGE reference values |
| Adequate intake (AI) of EFSA | 13 mg (men) · 11 mg (women) | EFSA 2015 |
| Tolerable upper intake level (UL) for adults | 300 mg per day | SCF/EFSA 2006 |
Three reference figures, three different numbers — that is not an error, it follows from the method. The NRV is a labelling figure for the percentage on the pack, the DGE estimate and the EFSA AI are derived from observed intakes in healthy population groups, and the UL is a safety limit. Anyone comparing percentages with recommendations is inevitably comparing unlike things.
Then there are the units. Imported packs often say "IU" (international units): 1 IU corresponds in practice to 1 mg all-rac-α-tocopheryl acetate, that is, the synthetic form. The SCF sets its potency at a factor of 0.67 relative to natural RRR-α-tocopherol; in its 2024 derivation the DGE reckons 1 mg RRR-α-tocopherol = 2 mg all-rac-α-tocopherol. The two bodies' factors therefore differ — anyone converting should say which one they used. For the 400 IU of the AREDS formula this works out, depending on the factor, at roughly 200 to 270 mg in RRR equivalents: just below the tolerable upper level of 300 mg, and about fifteen to twenty times what an adult takes in daily from food.
A combination supplement off the shelf is in an entirely different order of magnitude. Our Vitamin A + E + lutein contains 20 mg vitamin E per tablet (167 % NRV), plus 400 µg vitamin A (50 % NRV) and 10 mg lutein from Tagetes erecta extract. The approved effect sentence for this pack hangs on the vitamin A — Vitamin A contributes to the maintenance of normal vision. — while vitamin E brings its own sentence on cell protection, and neither says anything about the other.
Anyone who wants to cover the vision claim specifically cannot get past vitamin A or zinc: Zinc + vitamin B3 contains 25 mg zinc per tablet (250 % NRV) and is thus far above the 1.5 mg from which the zinc claim may be used at all.
Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle.
Where vitamin E sits in food
Vitamin E is produced exclusively by plants. According to EFSA and DGE the most important sources are vegetable oils and the spreadable fats made from them, nuts and seeds — almonds, sunflower seeds, wheat germ — plus wholegrain cereals, egg yolk and oily fish. In foods of animal origin the content is low and depends on what the animal ate. With oils it pays to look at the type: wheat germ, sunflower, olive and rapeseed oil supply mainly α-tocopherol, whereas soya and maize oil supply predominantly γ-tocopherol, which the body retains considerably less well.
A deficiency is very rare in Germany. The DGE explains this by the fact that usual diets supply enough and that vitamin E is stored in adipose tissue. The figures bear that out: in a German survey using 7-day dietary records, median intake was 14.6 mg per day in men and 12.3 mg in women — above the DGE estimated value of 8 mg and in the order of magnitude of the EFSA figures (cited in the SCF/EFSA report 2006, Table 1 of the vitamin E chapter).
Two practical points come on top. First, vitamin E needs fat in order to be absorbed; the absorption rate averages 40 to 60 per cent and falls as the dose rises — at pharmacological amounts from 200 mg upwards, less than 10 per cent is absorbed. High doses therefore do not deliver proportionally more. Second, requirements rise with the intake of polyunsaturated fatty acids; as a rule of thumb, 0.4 mg α-tocopherol equivalent per gram of polyunsaturated fatty acids applies. Anyone using a lot of vegetable oil needs more — and usually takes in more with the same oil.
Upper level and interactions
The tolerable total intake for adults is 300 mg per day. It was derived from a study with a NOAEL of 540 mg daily, divided by an uncertainty factor of 2; the critical endpoint was blood coagulation. For children and adolescents the adult value was scaled down via body surface area: 100 mg (1–3 years), 120 mg (4–6), 160 mg (7–10), 220 mg (11–14) and 260 mg (15–17). For pregnant and breastfeeding women the same value applies as for other adults (SCF/EFSA 2006).
This value is expressly not applicable to two groups: people taking anticoagulant medicines, and people with fat absorption disorders or other conditions in which the formation of vitamin K in the gut is impaired. In them, a high vitamin E intake can aggravate coagulation disorders; there are also indications of an increased bleeding risk with the concurrent use of acetylsalicylic acid. Anyone taking such medicines should clear the intake with a doctor — the same applies, for the same reason, to vitamin K, see Vitamin K2 interactions: medicines and nutrients.
For the usual amounts in combination supplements this is not an issue: 20 mg per tablet is around seven per cent of the upper level. The question only becomes relevant with high-dose single-nutrient products of 268 mg (400 IU) and above, as used in the study context. What else helps at a screen workstation — and what has nothing to do with a nutrient — is set out in Eyes and screen work: what the evidence shows.
Frequently asked questions
Does vitamin E protect the eyes? No food may be advertised with that statement. The corresponding application ("Protects the lens") was assessed and refused; the only approved sentence is the one about protecting cells from oxidative stress, which refers to DNA, proteins and lipids in general. The eye lens is of course also made of cells — but narrowing a general statement down to one organ is legally exactly the step the refusal rules out.
Why do some packs say IU instead of mg? Because the "international unit" is the older calculation figure and is still common outside the EU. 1 IU corresponds in practice to 1 mg all-rac-α-tocopheryl acetate, that is, the synthetic form. In the EU the amount on food supplements must be given in mg, together with the percentage of the reference value of 12 mg. Anyone comparing an imported pack with a local one should convert first — otherwise they are comparing 400 with 20 and missing that the units are not the same.
Natural or synthetic vitamin E — what does the label say? Natural vitamin E is declared as RRR-α-tocopherol (older designation: d-α-tocopherol), synthetic as all-rac-α-tocopherol (dl-α-tocopherol), usually as the acetate. The difference lies in the stereoisomers: of the eight forms in the synthetic mixture, only the 2R forms are retained in plasma, the four 2S forms are not. That is why the scientific bodies apply a discount to the synthetic form — factor 0.67 according to the SCF, factor 0.5 according to the DGE.
Can you take in too much vitamin E from food? Practically not. Measured intakes stay well below the upper level of 300 mg per day even at the top of the distribution; that range is only reached with high-dose supplements. Anyone taking several combination products at once should add up the daily total — what else accumulates in the process is shown by the Eyes category.
Sources: Regulation (EU) No 432/2012, Annex (wording of the approved claim); EU Register of nutrition and health claims, entries 160/161/162/164/166/167/183/203/216/1947 (wording and grounds for refusal, EFSA opinion 2010;8(10):1816); Regulation (EC) No 1924/2006, Annex and Article 12; Regulation (EU) No 1169/2011, Annex XIII (reference value 12 mg); DGE, reference values for vitamin E, 2024 state of derivation (estimated value 8 mg, RRR/all-rac conversion, food sources, rarity of deficiency); EFSA, Dietary Reference Values for vitamin E as α-tocopherol, 2015 (AI 13 and 11 mg respectively, food sources and tocopherol forms of the oils); SCF/EFSA, Tolerable Upper Intake Levels for Vitamins and Minerals, 2006, vitamin E chapter (UL 300 mg, derivation, values for children, absorption, PUFA relationship, German intake data, exceptions for anticoagulants); AREDS, Arch Ophthalmol 2001;119(10):1417–1436; Taylor et al., BMJ 2002;325(7354):11; AREDS2, JAMA 2013;309(19):2005–2015.
