Mixed tocopherols (natural vitamin E)
Mixed tocopherols (natural vitamin E) appear on 1,172 of the 2,354 pet food labels we have verified against the official product label — 49.8% of the corpus. That is 749 dog foods (67.4% of the dog corpus) and 423 cat foods (34.1% of the cat corpus), which makes they substantially more a dog-food ingredient than most discussion admits. Nobody publishes that split because computing it means reading every label.
What it is, and why it is in the food
A blend of vitamin E forms (alpha-, beta-, gamma-, delta-tocopherol) used as a natural-source antioxidant to slow fat rancidity, commonly chosen as an alternative to synthetic preservatives. EFSA concluded that tocopherol-rich extracts are safe for all animal species and the consumer and are efficacious antioxidants in feed. As a preservative they are well tolerated; they contribute only limited vitamin-E nutritional value at preservative use levels.
The evidence base is moderate: real studies exist, but the number of them is small enough that a single new trial could move the picture.
How common it is, and where it sits on the label
Ingredients are listed by pre-cooking weight, so position carries information: something in the first five is present in bulk, something near the end is a trace addition. Mixed tocopherols (natural vitamin E) are in the first five ingredients on 83 of the 1,172 foods that contain it — 7% — so on those it is a structural part of the recipe rather than an additive.
| Cut | Foods | Share |
|---|---|---|
| Dog foods | 749 | 67.4% of the dog corpus |
| Cat foods | 423 | 34.1% of the cat corpus |
| Dry food | 937 | 80% of foods containing it |
| Wet food | 215 | 18% of foods containing it |
| Air-dried food | 12 | 1% of foods containing it |
| Freeze-dried food | 7 | 1% of foods containing it |
| Fresh food | 1 | 0% of foods containing it |
| In the first five ingredients | 83 | 7% of foods containing it |
Every food that contains it, cheapest calories first
Ranked by cost per 1,000 kcal, which is the only price basis that survives different bag sizes and moisture levels. 509 of the 1,172 foods containing mixed tocopherols (natural vitamin e) have a matched price; the rest are verified but unpriced.
| Item | Value (%) |
|---|---|
| Dog foods | 67.4% (749) |
| Cat foods | 34.1% (423) |
| Dry (of those with it) | 80% (937) |
| Wet (of those with it) | 18% (215) |
| Air-dried (of those with it) | 1% (12) |
| In the first 5 ingredients | 7% (83) |
What actually differs about the foods that use it
Held to one species and one form — dry dog food — so the comparison is not just measuring moisture. 629 verified dry dog foods list mixed tocopherols (natural vitamin e); 21 do not. These are medians across those two groups.
| Measure | Contains it (629) | Does not (21) | Difference |
|---|---|---|---|
| Protein, dry matter | 29.5% | 23.9% | 5.6 points higher |
| Estimated carbohydrate, dry matter | 40.1% | 50.0% | 9.9 points lower |
| Cost per 1,000 kcal | $1.97 | $1.21 | $0.76 higher |
Across every food that lists it, mixed tocopherols (natural vitamin e) sits at position 13 in the ingredient list on a median food. The brands using it most in our corpus are Blue Buffalo (219), Royal Canin (119), Fromm (113), Hill's Science Diet (102), Wellness (100). A difference in this table is an association, not a cause: brands that reach for one ingredient tend to make similar formulation choices across the whole recipe.
Comparable foods that do not list it
Most people searching an ingredient name want the other half of the answer: what to buy instead. These are verified dry dog foods — the same species and form as most of the foods above, so the comparison is like for like — that do not list mixed tocopherols (natural vitamin e) anywhere in their ingredients, cheapest per 1,000 kcal first.
Avoiding one ingredient is rarely a good reason to switch on its own. Use this table the way you would use any other single filter — alongside the AAFCO statement, the protein figure and the recall record, all of which are on each food's page.
What we don’t know
Our figure counts what manufacturers print. An ingredient that arrives inside another component — a preservative already in the fish meal, say — does not have to be declared separately by the pet-food maker, so a count from labels is a floor, not a ceiling. We also cannot see inclusion rate: a label tells you mixed tocopherols (natural vitamin e) is present and roughly where it sits by weight, never how much.
The specific gap for preservatives is carry-over. A preservative added by a supplier to a component — most commonly to fish meal, before it ever reaches the pet-food plant — does not have to be declared by the pet-food maker. So a preservative-free ingredient list is evidence about the manufacturer’s own additions and nothing more. We do not translate any of this into a score. There is no honest way to weigh one ingredient against a food’s AAFCO substantiation, its recall history and its cost, and sites that do it anyway are making the weighting up.
Sources
- EFSA FEEDAP Panel — Assessment of the feed additives tocopherol extracts from vegetable oils and alpha-tocopherol for all animal species (renewal) (EFSA Journal) (2026)
- Prevalence figures: Verified Pet Food Data corpus, 2,354 labels verified against official product labels. Machine-readable, CC BY 4.0.
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Frequently asked
How common is mixed tocopherols (natural vitamin e) in pet food?
They appear on 1,172 of the 2,354 pet food labels we have verified — 49.8% of the corpus. That breaks down as 749 dog foods (67.4%) and 423 cat foods (34.1%).
Is mixed tocopherols (natural vitamin e) a main ingredient or a minor one?
On 83 of those 1,172 foods they appear within the first five ingredients, which means it is present by weight rather than as a trace addition. On the remaining 1,089 it sits further down the list.
Is mixed tocopherols (natural vitamin e) bad for dogs or cats?
A blend of vitamin E forms (alpha-, beta-, gamma-, delta-tocopherol) used as a natural-source antioxidant to slow fat rancidity, commonly chosen as an alternative to synthetic preservatives. EFSA concluded that tocopherol-rich extracts are safe for all animal species and the consumer and are efficacious antioxidants in feed. As a preservative they are well tolerated; they contribute only limited vitamin-E nutritional value at preservative use levels.
Which foods do not contain mixed tocopherols (natural vitamin e)?
Among verified dry dog foods with a matched price, PEDIGREE® Adult Marrobites Steak and Vegetable, PEDIGREE® Healthy Weight Dry Dog Food – Chicken & Veg, PEDIGREE® Tender Bites Dry Dog Food – Chicken & Steak are the cheapest per 1,000 kcal that do not list it. The full table is on this page.
All 35 ingredients we found on a real label are indexed on the ingredient hub. To see how these fields are read off a label in the first place, start with how to read a pet food label.