Shoppers managing weight and moderating salt
Compare salt and energy per 100g, then consider the quantity of tomatoes and other ingredients in the serving. Choosing a tin with less salt does not, by itself, determine the meal’s calorie content.
Who needs to compare these tins?
Salt, tomato texture and the amount used in a recipe can matter for different reasons; a tin’s label helps you judge the ingredient, not the finished meal.
Regular sauce, soup and batch cooks
If tinned tomatoes feature in several meals, check the salt declaration on the product you use regularly. Choose a chopped or whole-tomato texture that works for the recipe, and plan how you will use any opened tin.
Shoppers comparing own-label and Italian brands
Compare individual products rather than using the brand or country of origin as a shortcut. The ASDA, M&S, Tesco and Napolina product information cited below gives different salt values for plain chopped tomatoes.
What should you check before choosing?
Start with like-for-like figures on the nutrition panel, then check the ingredients, recipe texture and amount you will actually use.
| Priority | What to check | Your needs |
|---|---|---|
| Salt | Compare salt in grams per 100g, then check the figure for the amount used. Read the ingredients list to see whether salt is added, but use the nutrition panel for the quantity. | I use tomatoes often and want to keep track of the salt they add to a meal. ASDA lists 0.01g per 100g for its chopped tomatoes; ASDA Groceries lists 0.30g per 100g for Mutti Finely Chopped Tomatoes, which include salt as an ingredient. |
| Meal energy | Read kcal per 100g and account for the quantity used. Include other recipe ingredients and the size of the finished serving when assessing the meal. | Choosing a tin with less salt is one decision; I also want to account for the oil, cheese, sauces or other additions in what I eat. GOV.UK notes that consuming more calories than needed can lead to weight gain. |
| Texture | Check whether the tomatoes are chopped, finely chopped or whole peeled. Compare the salt panel separately rather than assuming the cut indicates the salt content. | For a sauce, I may prefer a particular texture, but I can check whether that product’s salt declaration fits the recipe. Napolina describes its chopped tomatoes as chunky; Mutti’s cited product is finely chopped and lists salt. |
| Pack and leftovers | Choose a single tin or multipack according to how often you cook with tomatoes. Check the exact pack’s refrigeration and use-after-opening instructions. | A multipack makes sense for me only if I will use the tins. When I open one, I need to plan the leftovers around that product’s stated storage period. |
What can make a comparison misleading?
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Assuming “Italian”, “premium” or “plain” means less salt
Those descriptions do not give a salt quantity. The cited ASDA plain chopped tomatoes declare 0.01g per 100g, while Napolina’s chopped tomatoes declare 0.10g per 100g and ASDA Groceries lists 0.30g per 100g for Mutti Finely Chopped Tomatoes.
Compare the salt figure per 100g on the exact product before choosing by brand or description.
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Treating less salt as a weight-management result
Reducing salt from the tomato base does not account for the energy or salt added by the rest of the recipe. GOV.UK links weight gain to consuming more calories than needed.
Consider the quantities of tomatoes, oil, cheese, stock and sauces in the serving you will eat.
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Comparing figures for different quantities
A half-can figure and a per-100g figure describe different amounts of food, so comparing them directly can obscure a product difference.
Compare per 100g first, then work out the contribution from the quantity your recipe uses.
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Opening a tin without a plan for leftovers
Storage instructions and use-after-opening periods differ between products. For example, the M&S listing says to refrigerate and eat its chopped tomatoes within three days, while the ASDA listing says to use its chopped tomatoes within four days.
Follow the instructions on your pack and plan another use for any contents you refrigerate.
An unused remainder may go to waste if it cannot be used within the stated period.
Brand and own-label references
These figures describe the named products, not every tin sold under each brand; check the current label when choosing a different format or recipe.
Napolina
Napolina describes its standard chopped tomatoes as chunky and suitable for thicker sauces; its product information covers singles and 4 x 400g packs.
- Napolina declares 0.10g salt and 23 kcal per 100g for its standard chopped tomatoes.
- That salt declaration is above those on the cited ASDA and M&S plain chopped products. Check flavoured variants separately.
Mutti
The Mutti product considered here is Finely Chopped Tomatoes, a different cut from standard chopped tins.
- Its finely chopped format is an option when that texture suits the recipe.
- ASDA Groceries lists tomatoes and salt as ingredients and declares 0.30g salt per 100g for this product. Do not apply that figure to Mutti’s other tomato formats.
Tesco
Tesco Italian Chopped Tomatoes 4 x 400g are listed as tomatoes in concentrated tomato juice with citric acid.
- Tesco declares 0.09g salt and 25 kcal per 100g for this multipack product.
- For a salt-led choice, compare its declaration with other plain tins rather than assuming all own-label products have the same value.
Sainsbury’s
Sainsbury’s Chopped Tomatoes Can 400g lists tomatoes, concentrated tomato juice and citric acid.
- Sainsbury’s declares 0.07g salt and 24 kcal per 100g for this tin.
- Use the label of the particular Sainsbury’s tin or multipack you buy rather than transferring this single-tin figure to every variant.
Asda
ASDA Chopped Tomatoes 400g lists tomatoes, concentrated tomato juice and citric acid.
- ASDA Groceries declares 0.01g salt and 22 kcal per 100g for this product, the smallest salt declaration among the plain chopped examples compared here.
- Check the current pack rather than assuming the same declaration applies to other ASDA tomato products.
M&S
M&S Chopped Italian Tomatoes 400g lists Italian chopped tomatoes, tomato juice and citric acid.
- Marks & Spencer declares 0.02g salt and 25 kcal per 100g for this product.
- Its label says to refrigerate after opening and eat within three days; check the pack when planning leftovers.
Tinned tomato options on Joybuy
These Joybuy options include chopped tomatoes and whole peeled tomatoes for cooking. Whole tomatoes can suit recipes where you will crush them, but they are not the same format as a chopped tin; compare each product’s salt declaration and pack size for your intended use.
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Laila Canned Chopped Tomatoes 12 x 400g
A multipack of chopped tomatoes for sauces, soups, curries and stews; consider whether you will use twelve tins.
The Joybuy listing declares 0.03g salt and 27 kcal per 100g and does not list salt as an ingredient. Check the amount used for your serving. Its instructions say to refrigerate opened contents in a non-metallic airtight container and consume within two days.
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Mutti Peeled Tomatoes 400g
Choose this whole peeled format for sauces or stews when you can crush or blend the tomatoes if the recipe needs a finer texture.
The Joybuy listing declares 0.01g salt and 22 kcal per 100g and lists peeled tomatoes and tomato juice without salt as an ingredient. Check the quantity used for your serving. The listing says to refrigerate opened contents and use within five days.
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Napolina Chopped Tomatoes 4 x 400g
This chopped multipack suits recipes calling for a chunky tomato base; compare its salt figure if reducing salt is a particular priority.
The Joybuy listing declares 0.10g salt and 23 kcal per 100g and does not list salt as an ingredient. Work from the amount you actually use rather than assuming a half-can serving. Its instructions say to refrigerate opened contents and use within two days.
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Laila Canned Plum Tomatoes 12 x 400g
These whole peeled plum tomatoes are listed for soups, sauces and stews; check that the format and twelve-tin pack suit your cooking plans.
The Joybuy listing declares 0.1g salt and 21 kcal per 100g and lists tomatoes and tomato juice without salt as an ingredient. Check the amount used for your serving. Its instructions say to refrigerate opened contents in a non-metallic airtight container and consume within two days.
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Napolina Peeled Plum Tomatoes 4 x 400g
These peeled plum tomatoes can be crushed for sauces and stews, but do not provide a ready-chopped texture.
The Joybuy listing declares 0.13g salt and 22 kcal per 100g and lists tomatoes, tomato juice and citric acid without salt as an ingredient. Check the quantity used for your serving. Its instructions say to refrigerate opened contents and use within two days.
Questions about salt, portions and storage
Will a lower-salt tin cause weight loss on its own?
No. It changes the salt contribution of one ingredient, not the energy content of the whole meal. GOV.UK notes that consuming more calories than needed can lead to weight gain, so consider the finished portion and additions such as oil, cheese and sauces.
How do I compare salt across different tin sizes?
Compare the declared salt per 100g first, then calculate the contribution from the amount your recipe uses. A serving figure is useful only when you know how its stated serving size relates to your portion.
Does a plain ingredients list guarantee the smallest salt figure?
No. Check whether salt is listed as an ingredient, then compare the nutrition panels. Among the cited plain chopped examples, ASDA declares 0.01g salt per 100g and Napolina declares 0.10g per 100g; ASDA Groceries lists 0.30g per 100g for Mutti Finely Chopped Tomatoes, which include salt.
How should I keep tomatoes left over from an opened tin?
Follow the storage instructions on that product’s pack and refrigerate opened contents where directed. The stated period varies: the cited Marks & Spencer chopped tomatoes say to eat within three days, while the cited ASDA chopped tomatoes say to use within four days.
Where can I find the salt figure if there is no front-of-pack label?
Check the nutrition information on the back or side of the pack. GOV.UK explains that front-of-pack traffic-light information may be shown by some manufacturers and supermarkets; it is not the only place to look for the salt declaration.