Low-fat label comparers
If fat content guides your choice, compare the figures for the exact tins you are considering, preferably per 100g drained. Spring-water products offer a useful starting point, but their salt figures can differ.
Who is this for?
Organic-claim verifiers
If organic production matters to you, check whether the wording applies to the finished product or to an ingredient such as olive oil. Then read the nutrition panel separately.
Sourcing-conscious shoppers
If you also look for MSC certification or a stated fishing method, check the claim on the exact pack. A sourcing claim answers a different question from organic status or fat content.
What should you check?
Start with the packing medium and fat figure, then check organic wording, salt and any sourcing or convenience features that matter to you. Use the same nutrition basis when comparing tins.
| Concern | What to check | Who this matters to |
|---|---|---|
| Total fat | Compare total fat per 100g drained where stated, along with the packing medium. | If keeping fat low is my main aim, the number on the tin matters more than an organic claim. About 31% of consumers would put that fat comparison first. |
| Organic wording | Read the exact claim, ingredients and certification information to see what is described as organic. | I want to know whether the claim covers the tuna or only an added ingredient before choosing a tin. That would be the primary concern for about 31% of consumers. |
| Salt | Check salt per 100g on a comparable basis; use per-serving information to assess the amount you eat. | A low fat figure is not enough for me if I am also comparing salt across spring-water tins. About 23% of consumers would make salt their main additional concern. |
| Sourcing and format | Check any MSC or fishing-method claim on the exact product, and whether its format needs draining. | If I want an easy-to-use tin with a stated sourcing claim, I would check those features after its nutrition panel. For about 15% of consumers, they would be the deciding concern. |
Buying pitfalls
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Assuming organic olive oil means organic, low-fat tuna
Abel & Cole lists a Fish4Ever tuna product in organic olive oil with 4.5g fat per 100g. Its organic-ingredient wording does not, by itself, establish that the fish is organic or that the finished product has a low fat figure.
Check the scope of the organic claim and compare the nutrition panel with a spring-water product. UK organic-product claims must meet production and certification requirements set out by the Department for Environment, Food & Rural Affairs.
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Comparing different nutrition bases
Can sizes and suggested servings vary. A per-serving figure and a per-100g drained figure do not describe the same quantity of food.
Compare per-100g drained values where both tins provide them, then check the amount you expect to use.
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Treating all spring-water tins alike
Spring-water packing alone does not settle a salt comparison. Sainsbury's lists 0.12g salt per 100g drained for its 4 x 145g tuna, while the Princes 4 x 145g listing at ASDA Groceries gives 0.85g on the same basis.
If salt matters alongside fat, compare both figures on the exact products you intend to buy.
Brands to consider
Princes
Its spring-water tuna chunks provide a straightforward option for comparing drained nutrition figures.
- Princes lists tuna and spring water as ingredients and 0.5g fat per 100g drained.
- ASDA Groceries lists 0.85g salt per 100g drained for the 4 x 145g pack; check salt separately if it affects your choice.
John West
The No Drain spring-water 3 x 100g pack is relevant if you want a tin designed to be used without draining.
- ASDA Groceries lists 0.9g fat per 100g and identifies the pack as MSC.
- The cited figures are per 100g, not stated as per 100g drained; use care when comparing them with drained values.
Sainsbury's
Its 4 x 145g spring-water tuna has a drained nutrition panel for shoppers comparing fat and salt together.
- Sainsbury's lists less than 0.5g fat and 0.12g salt per 100g drained.
- Those figures apply to that exact pack; check its current label when making a comparison.
Asda
ASDA Groceries lists spring-water multipacks from brands including Princes and John West.
- The listings give product-specific nutrition information that can be compared before choosing a format.
- Check the individual product rather than transferring one brand's figures to another tin.
M&S
Its 160g spring-water tuna offers another labelled option for comparing fat and salt.
- Marks & Spencer lists tuna and spring water as ingredients, with 0.6g fat and 0.75g salt per 100g.
- That panel does not specify a drained-weight basis, so check the basis before comparing it directly with drained figures.
Tesco
Tesco's tinned-tuna category separates spring-water, brine and oil-packed formats.
- Packing medium is a practical way to narrow the products whose nutrition panels you compare.
- A category listing does not establish an organic claim or nutrition figures for a particular tin.
Spring-water tuna on Joybuy
These tins represent the spring-water route for shoppers comparing tinned tuna for a low-fat diet. Check the current nutrition panel for each variant and verify any organic wording on its pack if that is part of your decision.
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John West Tuna Chunks in Springwater, 4 x 125g
Consider this spring-water multipack if you prefer four smaller tins. Compare its current fat and salt panel with other packs on the same basis.
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Morrisons Fad Free Tuna Chunks in Spring Water, 145g, 6-pack
Choose the six-pack format if you want several spring-water tins together. Check the label's fat and salt figures rather than treating the packing medium alone as the full nutrition comparison.
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Morrisons Fad Free Tuna Chunks in Spring Water, 145g
This single spring-water tin suits a purchase where a multipack is unnecessary. Read its own nutrition panel when comparing it with other sizes or brands.
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John West No Drain Tuna Chunks in Springwater, 3 x 100g
The No Drain format is worth considering if you want to use tuna without a draining step. For this 3 x 100g variant, ASDA Groceries lists 0.9g fat and 0.80g salt per 100g; check the pack's nutrition basis before comparing it with drained figures.
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Topical Sun Tuna Chunks in Springwater, 160g
This is another single-tin spring-water option. Use its current pack panel to compare fat and salt: the available approximate figures are per 100g and are not identified as drained values.
Frequently asked questions
Does organic tinned tuna necessarily have less fat?
No. Organic wording and fat content answer different questions. Abel & Cole lists Fish4Ever tuna in organic olive oil at 4.5g fat per 100g, while Princes lists 0.5g per 100g drained for its spring-water tuna; check both the scope of the organic claim and the nutrition basis.
What does low fat mean on a UK food label?
NHS food-label guidance defines low total fat as 3g or less per 100g of food. For tinned tuna, compare the exact products using drained per-100g figures where both provide them.
Is there a tuna limit during pregnancy?
Yes. The Food Standards Agency advises people who are pregnant or trying for a baby to have no more than four cans of tuna a week or two tuna steaks a week because of mercury. Choosing spring water or organic ingredients does not change that tuna-specific advice.
Does tinned tuna count as oily fish?
No. NHS guidance says fresh and canned tuna do not count as oily fish; an organic claim or oil-based packing medium does not change that classification.