Why is TUNA & SWEETCORN classified as ultra‑processed (NOVA 4) and what specific additives does it contain?

The sandwich includes refined wheat flour, added palm oil, emulsifiers (mono‑ and diglycerides of fatty acids – E471 and mono‑ and diacetyl tartaric acid esters – E472e), and a flour‑treatment agent (ascorbic acid – E300), all of which are characteristic of ultra‑processed foods, placing it in the NOVA 4 category.

Is the fish in this product a concern for people with seafood allergies?

Yes, tuna is the primary protein source and is listed as a fish allergen, so anyone with a seafood or fish allergy should avoid this sandwich.

Is TUNA & SWEETCORN suitable for vegan or gluten‑free diets?

No; the sandwich contains tuna (a fish protein) and wheat‑based ingredients such as wheat flour, wheat bran and gluten, making it unsuitable for both vegan and gluten‑free diets.

TESCO

TUNA & SWEETCORN

Composite Foods

Product Insights

TUNA & SWEETCORN is a ready‑to‑eat sandwich that falls within the fish dishes and sandwiches group of the French PNNS classification. It earns a Nutri‑Score of A thanks to low salt (0 g), low sugars (2.8 g) and a high protein content (≈10 g per 100 g), while its calorie level is moderate at 158 kcal per 100 g. Nevertheless, it is classified as ultra‑processed (NOVA 4), contains palm oil, emulsifiers (E471, E472e) and several allergens such as fish, gluten, eggs and mustard, which may be concerns for health‑focused consumers.

Nutrient Levels

Traffic light indicators

Fat

moderate

Saturated Fat

low

Sugars

low

Salt

low

Nutritional Values

Values per 100 g/ml

Energy Kcal158 kcal

Comparative Analysis

With a Nutri‑Score of A, low salt and sugar, and high protein, this tuna‑and‑sweetcorn sandwich ranks among the healthier processed sandwich options, despite its ultra‑processed NOVA‑4 status and the presence of palm oil and emulsifiers.

Ingredients

Wheat Flour [Wheat Flour, Calcium Carbonate, Iron, Niacin, Thiamin], Tuna (Fish) (22%), Water, Sweetcorn (15%), Malted Wheat Flakes, Rapeseed Oil, Wheat Bran, Cornflour, Spirit Vinegar, Sugar, Salt, Yeast, Malted Barley Flour, Pasteurised Egg, Emulsifiers (Mono - and Diglycerides of Fatty Acids, Mono - and Diacetyl Tartaric Acid Esters of Mono - and Diglycerides of Fatty Acids), Wheat Gluten, Pasteurised Egg Yolk, Malted Wheat Flour, Concentrated Lemon Juice, White Pepper, Brown Mustard Seeds, Flour Treatment Agent (Ascorbic Acid), Palm Oil. Allergy Advice For allergens, including cereals containing gluten, see ingredients in bold. Caution This product can contain minor bones. STORAGE Keep refrigerated.

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