Who is this for?

Certification-first Easter shoppers

If a verifiable sustainability credential leads your choice, check the MSC mark on each pack you consider. The Marine Stewardship Council’s February 2026 UK supermarket report found the label on 180 of 364 tuna products purchased; that finding does not establish the status of any unlabelled tin.

Meal-planning hosts

Sandwich fillings, salads and pasta dishes can call for different textures and quantities. Compare chunks with steaks or fillets, and use drained weight and can count to plan how much tuna each dish needs.

Ingredient-detail comparers

Spring water, brine and oil change what goes into the finished dish. Read the ingredients, nutrition panel and storage instructions on the particular product rather than treating those packing liquids as interchangeable.

What matters when choosing?

ConcernWhat to checkWho this matters to
Certified sourcing Find the blue MSC ecolabel on the exact can or multipack; do not substitute a general brand claim. If certification is the reason for choosing tuna, an unlabelled alternative does not answer that need. About 36% of consumers put a product-specific certification mark first.
Recipe fit Choose chunks for mixed dishes or consider fillets for a more defined texture; compare drained weight. When making fillings as well as salads, the tuna’s form needs to work in the planned dishes. About 29% of consumers primarily care about that recipe fit.
Pack planning Compare can count and drained quantity with the servings planned; read the instructions for leftovers. Several Easter meals may call for separate tins rather than one opened can. Around 21% of consumers put matching the pack to their meal plan first.
Ingredients and dietary details Read the packing liquid, salt, fish-allergen declaration and nutrition panel; follow relevant NHS tuna guidance during pregnancy. For a guest with a fish allergy, or where the packing liquid affects a recipe, label details govern the choice. About 14% of consumers prioritise these ingredient and dietary checks.

What should you avoid overlooking?

  • Assuming a brand claim covers every tin

    MSC-labelled and unlabelled tuna can appear within a retailer’s range. A company sourcing statement does not identify the certification status of every format on the shelf.

    Check the MSC mark or a product-specific certification statement on the pack you intend to buy.

  • Planning portions from the total pack weight

    Brine, water or oil contributes to a tin’s total weight, so that figure alone does not tell you how much tuna is available for a recipe.

    Compare drained weight and can count against the servings you are preparing.

  • Treating every packing liquid alike

    Oil can be part of a dish’s flavour, while spring water or brine may call for different seasoning. Nutrition values also vary between the specific products compared.

    Choose a packing liquid for the recipe, then read the exact product’s nutrition and salt information.

  • Missing serving and safety information

    The cited tuna products declare fish as an allergen, and product warnings may say that bones remain. The NHS also gives a weekly tuna limit during pregnancy.

    Check guests’ allergies and the pack warnings before serving; where pregnancy is relevant, follow the NHS guidance on tuna intake.

Brands and retailers to consider

John West

A reference point for MSC-labelled tuna chunks in spring water, particularly for mixed fillings and salads.

  • Sainsbury’s lists John West 125g MSC Tuna Chunks in Spring Water with a 102g drained weight and ingredients of tuna, spring water and salt.
  • That listing establishes details for the named product, not every John West tuna format. Check the pack you choose.

Princes

Offers chunk formats and multipacks to compare when shopping for several meals.

  • Princes says it has completed its commitment to making all its tuna MSC-certified; its 2026 catalogue identifies MSC chunks in several packing liquids.
  • The company statement is not a substitute for checking the certification mark, packing liquid and size of the current pack.

Rio Mare

An olive-oil-packed fillet option for dishes where the tuna remains visible.

  • Tesco lists Rio Mare Tuna Fillets in Olive Oil 180g as MSC-certified.
  • Check the nutrition panel and drained quantity on the particular format you buy; fillets in oil are not interchangeable with chunks in spring water.

Sainsbury's

An own-label route worth checking if your Easter shop is at Sainsbury’s.

  • In May 2023, Sainsbury’s announced that its own-label canned tuna was MSC-certified and pole-and-line caught.
  • The announcement does not establish what is printed on every current pack. Inspect the certification and fishing-method statements on the item you select.

Tesco

A retailer range in which to compare named MSC-labelled tuna products and other formats.

  • Tesco lists MSC-labelled John West chunks and Rio Mare fillets among its tinned tuna products.
  • A labelled item in the range does not establish certification for other Tesco or third-party tuna products.

Joybuy tuna selections

These choices cover olive-oil fillets in a glass jar and two chunk multipacks for Easter salads, fillings and meals across several days. Check the MSC mark on the current pack when certification is central to your choice.

Rio Mare Tuna Fillets in Olive Oil Glass Jar 180g

Rio Mare Tuna Fillets in Olive Oil Glass Jar 180g

Consider this glass-jar fillet format for a salad or sharing dish where you want distinct pieces of tuna. It contains tuna in olive oil; check this jar’s MSC mark and drained quantity when planning portions.

View on Joybuy
John West No Drain Tuna Chunks in Springwater 3 x 100g

John West No Drain Tuna Chunks in Springwater 3 x 100g

The three-pack offers spring-water chunks for sandwiches or other mixed dishes. Tesco lists this product format as MSC-labelled; check the current multipack for the mark and use its own nutrition panel for comparisons.

View on Joybuy
Princes Tuna Chunks in Brine 4 x 145g

Princes Tuna Chunks in Brine 4 x 145g

Four separate tins may suit a menu spread across several meals. These chunks are packed in brine; compare the current pack’s drained weight and salt information, and check its MSC mark before relying on a certification claim.

View on Joybuy

Questions about buying tuna

How can I check a tuna tin’s sustainability credential?

Look for the blue MSC ecolabel on the exact can or multipack you are buying. The Marine Stewardship Council found the label on 180 of 364 tuna products purchased in UK supermarkets for its February 2026 report, so do not assume an unlabelled product has the same certification.

Should I choose spring water, brine or olive oil?

Choose the packing liquid to suit the dish, then compare the exact labels for salt and nutrition. For two specific products, Sainsbury’s lists John West spring-water chunks at 106 kcal and 0.7g fat per 100g drained, while Tesco lists Rio Mare olive-oil fillets at 193 kcal and 9.0g fat per 100g drained; those figures do not describe every tuna product in either liquid.

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

Follow the instructions on that product’s label. Joybuy’s listing for Princes Tuna Chunks in Brine 4 x 145g says to transfer unused tuna to a sealed container, refrigerate it and consume it within two days of opening.

Is there a tuna limit during pregnancy?

Yes. The NHS advises people who are pregnant not to eat more than four cans of tuna or two tuna steaks a week. Include tuna planned for different Easter dishes when considering that weekly limit.