Why is Tuna in olive oil classified as processed (NOVA 3) and what additives does it contain?

Because the fish is cooked, canned and packed in olive oil, which constitutes a moderate level of industrial processing (NOVA 3). The label typically lists only tuna, olive oil and salt; no synthetic preservatives or flavor enhancers are required for this simple formulation.

How does the high fat and calorie content of this tuna affect a heart‑healthy or weight‑management diet?

The 37 g of fat and ~500 kcal per 100 g make the product energy‑dense, so portion control is essential; the fat is largely from olive oil, which is mostly monounsaturated and can be part of a balanced diet, but excessive intake may hinder weight loss or increase cardiovascular risk if consumed in large amounts.

Is Tuna in olive oil suitable for specific dietary patterns such as keto, paleo, or halal?

Its low carbohydrate, moderate protein and high fat profile fits keto and paleo principles, and because the ingredients are tuna and olive oil with optional salt, it can be considered halal provided the fish is sourced according to halal standards.

RIO mare

Tuna in olive oil

Fish Meat Eggs

Product Insights

Tuna in olive oil is a ready-to-eat canned fish product that belongs to the Fish Meat Eggs family within the PNNS classification. It delivers 17 g of protein and 0 g of sugars per 100 g but is very high in fat (37 g) and calories (≈ 500 kcal), placing it in the high‑fat category. The product carries a NOVA 3 processing level and has no Nutri‑Score rating, reflecting its processed nature and the trade‑off between protein benefits and elevated energy density.

Nutrient Levels

Traffic light indicators

Fat

high

Saturated Fat

high

Sugars

low

Salt

moderate

Nutritional Values

Values per 100 g/ml

Energy Kcal401 kcal

Fat37 g

Saturated Fat6 g

Carbohydrates0 g

Sugars0 g

Comparative Analysis

Compared with typical canned tuna, this product contains about 5‑times more fat (37 g vs 6.6 g) and over three times the calories (≈ 500 kcal vs 149 kcal), while its protein (17 g) is slightly below the average of 18 g and it contains no sugars.

Ingredients

TUNA IN OLIVE OIL. Ingredients: tuna (FISH)**, olive oil, salt. **Euthynnus (Katsuwonus) pelamis. Store in a cool dry place. Refrigerate after opening and use within two days. Distributor: Filippo Berio UK Ltd, Premiere House, Elstree Way, Borehamwood, Herts, WD6 1JH. *This product is a source of protein as is all canned tuna in oil. BOLTON FOOD S.P.A., Via L.Einaudi, 18/22 22072 Cermenate (CO), Italia OPEN HERE AVERAGE NUTRITIONI 100 g SERVING OF THE Energy Fat of which saturates Carbohydrate of which sugars Protein Salt Try the unmistakable taste of Rio Mare: only prime quality amazed by its unique flavour, its delicate pink colour and it why Rio Mare is the ideal choice for all your dishes. Rio offer you a Responsible Quality in all of inable fishing, to the respect of the environn roper nutrition. Find out more on www.qu

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