Who is each format for?

People short of time in the morning

A no-drain pack removes the draining step when making toast or a wrap filling. Check the exact variant: an easy-open tin is not necessarily a no-drain product.

People stocking several meals

Standard tins and multipacks offer separate portions for breakfasts and other meals. Choose the can size with opened leftovers in mind, and compare net weight with drained weight when the latter is shown.

People who shop by the label

Compare the packing medium and nutrition for the exact product. Fish-allergen declarations, storage instructions and any named sourcing certification also belong in that pack-level check.

What should you check?

Start with how you will use the tuna at breakfast, then compare the portions and labels of formats that fit.

PriorityWhat to checkYour needs
Preparation Look for an explicit no-drain instruction if you want to use the tuna immediately. Check how the pack opens separately. I want to make toast or a wrap filling without stopping to drain a tin.
Texture Check whether the product contains chunks or a chunks-and-flakes mix. Princes describes its Sandwich Tuna in Spring Water as chunks and flakes. For a sandwich topping, I may prefer a finer mix; for a plate with distinct pieces, I would choose chunks.
Portions Compare can count, net weight and drained weight where stated. Check the exact pack’s instructions for opened leftovers. A smaller can may fit one breakfast better if I am unlikely to use the remainder soon.
Packing medium Read whether the tuna is in spring water, brine or oil, and compare nutrition on the same per-100g basis. The listed M&S sunflower-oil chunks have 9.0g fat per 100g drained, according to Ocado. I want the packing medium to suit the recipe, and I may need to compare salt or fat on the exact labels.
Labels and use Check the fish-allergen declaration and any named certification on the exact pack. If pregnant or trying for a baby, consult NHS guidance on weekly tuna consumption. A sourcing label may matter to me, while an allergy or pregnancy changes which pack information I need to check before use.

Common buying mistakes

  • Confusing net weight with usable tuna

    A standard tin’s net weight includes its packing liquid, so two tins of similar size need not provide the same drained quantity.

    Check drained weight where stated and choose a can size that fits the number of people eating.

  • Assuming every packing medium has the same nutrition

    Product labels differ. For example, Ocado lists 9.0g fat and 1.00g salt per 100g drained for M&S tuna chunks in sunflower oil.

    Compare the exact variants on a like-for-like per-100g basis rather than relying on the word “tuna” alone.

  • Treating an opened tin as a cupboard item

    The cited John West no-drain and M&S product instructions call for refrigeration after opening and use within two days.

    Follow your pack’s storage instructions and choose a portion you expect to use within its stated period.

    An oversized opened portion can go unused if there is no planned second meal.

  • Counting tuna as oily fish or overlooking pregnancy guidance

    The NHS says fresh and canned tuna do not count as oily fish. NHS guidance also limits tuna to no more than four cans a week during pregnancy.

    If you are pregnant or trying for a baby, check the current NHS guidance when planning how often to eat tuna.

Brand and range references

These examples describe particular products and ranges, not every tin carrying the same brand.

John West

Its No Drain Tuna Chunks in Spring Water 3 x 100g is a ready-to-use option for a quick filling; the cited product carries an MSC label.

  • John West lists 90% tuna, 27g protein and 0.8g salt per 100g for this product.
  • Check the exact variant rather than assuming every John West spring-water tin is no-drain or MSC-labelled.

Princes

The cited range includes brine chunks and a Sandwich Tuna in Spring Water made with chunks and flakes.

  • Princes lists tuna, water and salt for its brine chunks, with 23.5g protein per 100g drained.
  • The Sandwich Tuna has a different texture and lists 21.0g protein per 100g drained; compare the relevant pack label.

Tesco

Tesco’s cited online assortment includes own-label tuna chunks in different packing media and pack sizes.

  • Single tins, multipacks and larger tins provide different portion-planning options in the cited assortment.
  • Check the precise pack’s medium, weight and instructions; an assortment listing does not describe every variant alike.

M&S

Ocado lists M&S tuna chunks in sunflower oil with product-specific ingredients, nutrition and storage instructions.

  • The listing states 27.1g protein per 100g drained.
  • It also states 189kcal, 9.0g fat and 1.00g salt per 100g drained; check the pack if those figures affect your choice.

Tinned tuna options on Joybuy

These options cover no-drain tuna and standard chunks for weekday breakfasts. Check each pack’s preparation instructions before choosing it for an especially rushed morning.

John West No Drain Tuna Chunks in Spring Water, 3 x 100g

John West No Drain Tuna Chunks in Spring Water 3 x 100g

The no-drain format removes a preparation step for a toast or wrap filling. This is a three-can, 100g-per-can pack; John West lists 27g protein and 0.8g salt per 100g for this product. Follow the pack’s instructions for any opened portion.

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John West No Drain Tuna Chunks in Sunflower Oil, 3 x 100g

John West No Drain Tuna Chunks in Sunflower Oil 3 x 100g

Choose this no-drain variant when sunflower oil suits the breakfast recipe. The pack contains three 100g cans; compare its nutrition label with a spring-water variant if the packing medium matters to you.

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Princes Tuna Chunks in Brine, 4 x 145g

Princes Tuna Chunks in Brine 4 x 145g

This four-can pack suits cupboard stocking when draining is acceptable. Princes lists 23.5g protein and 0.9g salt per 100g drained for its brine chunks; check drained weight when planning portions.

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Morrisons Fad Free Tuna Chunks in Spring Water, six 145g cans

Morrisons Fad Free Tuna Chunks in Spring Water 6 x 145g

Six separate cans provide portions for several uses. Check the preparation instructions if avoiding a draining step is important, and follow the pack’s storage directions after opening a can.

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John West Tuna Chunks in Spring Water, 4 x 125g

John West Tuna Chunks in Spring Water 4 x 125g

This four-can spring-water pack offers separate tins for several breakfasts. If immediate no-drain use is essential, check the instructions for this exact variant before choosing it.

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Questions about breakfast tuna

Which packing medium should I choose for breakfast?

Choose according to the recipe and the exact pack label, rather than assuming spring water, brine and oil have identical nutrition. If salt or fat affects your choice, compare values per 100g on the same stated basis; Ocado lists 9.0g fat per 100g drained for the cited M&S sunflower-oil chunks.

What should I do with tuna left after opening a tin?

Follow the instructions on that pack and refrigerate leftovers as directed. The cited John West no-drain and M&S product pages say to refrigerate after opening and consume within two days; the M&S instructions also specify a non-metallic container for unused contents.

Is tinned tuna suitable for someone with a fish allergy?

No: tuna is fish, which the Food Standards Agency identifies as an allergen. Check the declaration on the exact product rather than relying on a previously purchased pack.

Can I eat tinned tuna every weekday during pregnancy?

The NHS advises people who are pregnant not to eat more than four cans of tuna a week, so a tin on every weekday would exceed that limit. If you are pregnant or trying for a baby, check current NHS guidance when planning your weekly tuna consumption.

How can I check a tuna tin’s sourcing claim?

Look for a named certification or a specific sourcing statement on the exact product. The cited John West No Drain Spring Water 3 x 100g product carries an MSC label; that does not establish the certification status of other John West variants.