Calories in Tuna (Ireland)

Tuna: typically 146 calories per 100g. Individual products range from 40 to 434 per 100g. Best for protein per calorie: Dunnes Stores Tuna Steak in Brine, at 24.5g of protein per 100 calories.

Real label figures, compiled from on-pack data and Open Food Facts — last checked 2026-09-18.

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Tuna ranked by protein density

Product	kcal/100g	Protein/100kcal	Carbs/100kcal	Fat/100kcal
Dunnes Stores Tuna Steak in Brine	102	24.5g	0g	0.2g
Dunnes Stores Tuna Steak in Spring Water 110g	102	24.5g	0g	0.2g
John West Light Meat Tuna Chunks in Water	110	24.5g	0g	0.5g
John West White Meat Tuna Solid in Water 170g	110	24.5g	0g	0.5g
Empress Chunk light tuna 142g	70	24g	0g	1g
SuperValu Tuna Chunks in Brine 56g	98	24g	0g	0.5g
John West MSC Tuna Chunks in Brine 4 x 145g	113	23.9g	0g	0.4g
John West MSC Tuna Chunks in Spring Water 4 x 145g	113	23.9g	0g	0.4g
John West Sandwich Tuna in Brine 3 x 145g	113	23.9g	0g	0.4g
John West Sandwich Tuna in Spring Water 2 x 132g	113	23.9g	0g	0.4g
John West Tuna Chunks in Brine 145g	113	23.9g	0g	0.4g
John West Tuna Chunks in Spring Water 145g	113	23.9g	0g	0.4g
John West Tuna Flakes & Chunks in Brine 3 x 132g	113	23.9g	0g	0.4g
Aldi The Fishmonger Tinned Tuna Steaks in Spring Water 120g	105	23.8g	0.8g	0.8g
Lidl Nixe Tuna Chunks in Spring Water 112g	64	23.8g	0.2g	0.5g
SPAR Tuna Steaks in a Little Spring Water 110g	108	23.8g	0.5g	0.3g
Sea Tales Solid Light Skip Jack Wild Tuna 5 oz	104	23.8g	0g	0.5g
Aldi The Fishmonger Tuna Chunks in Spring Water 4 x 145g	108	23.7g	0.9g	0.9g
John West Pole & Line Tuna Chunks in Brine 160g	114	23.7g	0g	0.4g
John West Pole & Line Tuna Chunks in Spring Water 160g	114	23.7g	0g	0.4g
John West Tuna Steak In Brine 80g	114	23.7g	0g	0.4g
John West Tuna Chunks in Brine 93g	106	23.6g	0g	0.7g
John West Tuna Chunks in Spring Water	106	23.6g	0g	0.7g
John West Tuna Steak with a Little Spring Water 50g	120	23.6g	0g	0.7g
John West Tuna in Water 102g	106	23.6g	0g	0.7g
John West Tuna Flakes & Chunks in Spring Water 3 x 132g	98	23.5g	0g	0.7g
John West Tuna Steak with a Little Brine 3 x 60g	113	23.5g	0g	0.7g
SuperValu Tuna Steak with a Little Brine 120g	119	23.5g	0g	0.7g
John West Tuna Chunks in Brine Lower Salt 3 x 145g	107	23.4g	0g	0.7g
John West Tuna Chunks in Spring Water Lower Salt 3 x 145g	107	23.4g	0g	0.7g
Dunnes Stores Tuna Chunks In Brine 3 x 80g	107	23.3g	0g	0.7g
John West Fridge Pot Tuna Steak with a Little Brine 110g	120	23.3g	0g	0.8g
John West Fridge Pot Tuna Steak with a Little Spring Water 110g	120	23.3g	0g	0.8g
John West No Drain Fridge Pot Tuna Steak with a Little Brine 110g	120	23.3g	0g	0.8g
John West Tuna Chunks with Brine 100g	116	23.3g	0.2g	0.8g
John West Tuna Chunks with Spring Water	116	23.3g	0g	0.8g
John West Tuna Chunks with a Little Brine 100g	116	23.3g	0.2g	0.8g
John West Tuna Chunks with a Little Brine 110g	116	23.3g	0g	0.8g
John West Tuna Chunks with a Little Spring Water 100g	116	23.3g	0g	0.8g
John West Tuna Steak In a Little Spring Water 110g	120	23.3g	0g	0.8g
John West No Drain Tuna Steak with a Little Spring Water 120g	114	23.2g	0g	0.8g
John West Tuna Chunks in Spring Water 110g	114	23.2g	0g	0.8g
John West Tuna Steak In Spring Water 120g	114	23.2g	0g	0.8g
Aldi The Fishmonger Tuna Chunks In Brine 4 x 145g	108	23.1g	0g	0.9g
John West Immunity No Drain Tuna Steak MSC with Spring Water 3 X 110g	121	23.1g	0.2g	0.7g
John West Immunity Tuna Steak with Spring Water 110g	121	23.1g	0.2g	0.7g
John West Natural Protein Tuna Steak Brine 120g	121	23.1g	0g	0.7g
John West No Drain Tuna Chunks with a Little Brine 120g	109	23.1g	0g	0.8g
John West No Drain Tuna with Spring Water 3 x 60g	121	23.1g	0.2g	0.7g
John West Succulent Tuna Chunks with a Little Brine 120g	108	23.1g	0g	0.8g

Showing the top 50 of the 273 tuna products that carry a comparable calorie figure, ranked by protein per 100 calories. Figures per label, sourced from Open Food Facts and tracker user logs, last checked 2026-09-18.

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What the tuna numbers show

Median across all 273 of them is 12.9g of protein per 100 calories. 159 clear 10g of protein per 100 calories — about one in two, and 10g is the line Keith uses for a food that pays for its calories.

Calories run from 40 to 434 per 100g inside this one group, an 11-fold spread, so “tuna” on its own tells you almost nothing about what a portion costs you.

Own-brand is not the compromise here. The supermarket own-label median is 22.8g of protein per 100 calories across 59 products, against 10.6g for the 214 name-brand ones.

What to actually pick

Most of this group already clears the benchmark, so the decision is price and taste rather than macros. Dunnes Stores Tuna Steak in Brine tops the table at 24.5g of protein per 100 calories.

1 of the 273 carry 400 calories or more per 100g — the ones worth weighing rather than eyeballing.

Where this fits

A protein-per-calorie number is only useful once you know the target, and that is how much protein a day actually works out to.

For one specific product rather than the whole group, the 20,000-product database is searchable on Calories in Ireland, and the same figures are built into the calorie app.

Real tuna products with a photo

Real barcode-matched products with a confirmed photo — the same rule as Calories in Ireland: a photo only shows where we have a confirmed Open Food Facts match, never a guessed stock image.

Dunnes Stores Tuna Steak in Spring Water 110g

24.5g protein / 100kcal

Lidl Deluxe 2 Yellow Fin Tuna Steaks 250g

23.1g protein / 100kcal

SuperValu Tuna Chunks in Spring Water 145g

22.9g protein / 100kcal

Dunnes Stores Tuna Fish In Brine 185g

22.8g protein / 100kcal

SuperValu Tuna Steak with a Little Sunflower Oil 120g

18.3g protein / 100kcal

Protein in Tinned Tuna

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Lidl Aldi Tesco Dunnes Stores SuperValu Centra Spar Search all 20,000+ foods

FAQ

How many tuna products are in this database?

We track 273 tuna products across Irish supermarkets and brands. 273 of them carry 20 calories or more per 100g, which is the point below which protein per 100 calories stops being a real number, so those are the ones ranked and averaged here.

What's the most protein-dense tuna product?

The table is sorted highest protein per 100 calories first, so the answer is the top row. The more useful number is that the median for the whole group is 12.9g per 100 calories and 159 products clear 10g — that tells you whether tuna is worth buying for protein at all, which protein per 100g does not.