First-time cupboard stockers
If you want a straightforward lunch from a can, check whether the soup can be heated as sold or needs diluting first. Campbell's condensed soups, for example, need an extra preparation step.
Who is this for?
Shoppers planning a meal under 500 calories
Work from the amount of soup you expect to eat, rather than assuming the labelled portion is your meal. NHS food-label guidance notes that a manufacturer's portion can differ from your own.
Shoppers checking diet and allergens
Read the current ingredients and allergen statement for the individual can. Vegetarian or vegan wording does not settle whether a product is suitable for someone with a particular allergy.
What should you check?
Start with your intended portion and preparation method, then compare salt and ingredients between cans that meet those requirements.
| Priority | What to check | Your needs |
|---|---|---|
| Meal calories | Find the kcal per 100g or per labelled portion and calculate for the amount you will eat. Count bread, cheese, milk or other additions separately; NHS guidance cautions that labelled portions may not match yours. | I want the whole meal, not just a serving printed on the can, to come in under 500 calories. |
| Salt | Compare salt per 100g on similar soups, then calculate it for your portion. Tesco Groceries lists Heinz Cream Of Tomato Soup at 1.1g salt per half of its 400g can, or 2.2g for the full can. | If I expect to eat the whole can, I want to know its full salt figure as well as the smaller labelled serving. |
| Ingredients and allergens | Check the current pack, even when the soup is described as vegetarian or vegan. Marks & Spencer labels its Chunky Mexican-style Chilli and Bean Soup vegan but also states that it is not suitable for people with a milk or egg allergy. | A diet label helps me narrow the choice, but I still need to check whether the individual soup meets my ingredient and allergy requirements. |
| Preparation | Check whether the can is ready to heat or condensed, and read any dilution instructions. Joybuy's Campbell's condensed chicken soup directions specify adding one can of water, or half milk and half water, before heating. | For a quick lunch I would choose fewer preparation steps; if I also want a recipe ingredient, I can consider condensed soup. |
| Leftovers | Check the opening and storage instructions on the exact can before planning to use it across meals. Product-specific instructions may call for transferring unused soup to another container and refrigerating it. | If I will only eat part of a can, I need a workable plan for storing and using the rest. |
Common buying mistakes
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Reading a half-can serving as a whole meal
Tesco Groceries lists Heinz Cream Of Tomato Soup at 102 kcal and 1.1g salt per half-can. Eating the full 400g can means 204 kcal and 2.2g salt before any additions.
Use the can weight and per-100g figures, or multiply a labelled serving by the number of servings you will eat.
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Assuming similar soups have similar salt levels
Action on Salt & Sugar's February 2026 analysis of 481 ready-to-eat soups sold by major UK retailers reported salt values ranging from 0.1g to 1.6g per 100g.
Compare salt per 100g between soups, then work out the figure for your intended portion.
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Picking condensed soup for a no-prep lunch
Campbell's condensed chicken soup needs diluting before heating, so it takes another step beyond heating a ready-to-heat can.
Read the preparation directions before buying. If you use milk instead of water, include it when assessing the finished meal's calories and allergens.
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Treating a vegan or vegetarian label as an allergen check
Marks & Spencer describes its Chunky Mexican-style Chilli and Bean Soup as vegan, yet its product information says it is not suitable for people with a milk or egg allergy.
Check the ingredients and allergen statement on the current product, rather than relying on its dietary description alone.
Brand and range references
These examples illustrate different soup formats and label checks; they do not describe every product made by each brand.
Heinz
Its Cream Of Tomato Soup is a ready-to-heat 400g example for a simple cupboard meal.
- Tesco Groceries lists 51 kcal per 100g, equivalent to 204 kcal for the full 400g can before additions.
- The listed ingredients include milk, and the salt figure of 1.1g covers only half the can.
Campbell's
Its condensed Cream of Chicken and Cream of Tomato soups offer a route for heating as soup or using in cooking, with dilution required before heating.
- Campbell's UK describes its condensed Cream of Chicken soup as suitable for cooking as well as serving as soup.
- The chicken variant lists wheat and milk and may contain egg; the tomato variant lists milk and celery. Check the exact can and any ingredients used for dilution.
Tesco
Tesco Groceries lists own-label tomato soups alongside branded and other soup varieties, giving shoppers products whose labels they can compare in one shop.
- Its listed tomato range includes Cream Of Tomato, Low Fat Tomato and Plant Chef Tomato and Basil soups.
- A range name does not establish the calories, salt or dietary suitability of an individual can; compare its own label.
M&S
Its Chunky Mexican-style Chilli and Bean Soup is a 400g bean-based example labelled vegan and vegetarian by Marks & Spencer.
- Marks & Spencer lists 62 kcal per 100g, equivalent to 248 kcal for the full can before additions.
- The product information lists 0.50g salt per 100g and warns that the soup is not suitable for people with a milk or egg allergy.
Tinned soup options on Joybuy
These 400g tinned soups offer bean, pea and vegetable choices for a first food shop. Check the current nutrition and ingredient label against your intended portion before treating any can as part of an under-500-calorie meal.
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Suma Organic Tuscan Bean Soup 400g
A 400g bean soup to consider if you want one can for a first-shop meal. Check the current kcal and salt figures for the amount you will eat, and check the ingredients if celery matters to you.
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Suma Pea & Vegan Ham Soup 400g
A 400g pea soup for shoppers considering a ham-style flavour. Ingredient details list milk, wheat and soya despite “Vegan” in the product name, so check the current pack before relying on its dietary suitability. Check the heating directions and nutrition figures for your planned portion.
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Baxters Vegetarian Country Garden Soup 400g
A 400g vegetarian soup to consider if you prefer a vegetable option. Its ingredient details list milk, so check the current pack if that affects your choice. Read the heating instructions and calculate calories and salt for the amount you intend to eat.
Questions about choosing and using soup
Does soup stay under 500 calories if I add bread or cheese?
Not automatically: calculate calories for the soup you eat, then include the bread, cheese and any other additions. Tesco Groceries lists Heinz Cream Of Tomato Soup at 51 kcal per 100g, making its 400g can 204 kcal before additions.
Do I need to dilute condensed soup?
Follow the directions for the exact can. Joybuy's Campbell's condensed chicken soup instructions specify diluting the 295g can with one can of cold water, or half milk and half water, before heating; milk also needs to be counted in the finished meal.
Is a vegan soup necessarily suitable for a milk or egg allergy?
No. Check the current allergen statement for the individual product. Marks & Spencer labels its Chunky Mexican-style Chilli and Bean Soup vegan but states that it is not suitable for people with a milk or egg allergy.
Which salt figure should I compare on soup labels?
Compare salt per 100g between soups, then calculate the amount in your intended portion or full can. NHS food-label guidance defines more than 1.5g salt per 100g as high and 0.3g or less per 100g as low.
What should I do with soup left in an opened can?
Follow the storage directions on the exact product. Joybuy's Heinz Cream of Tomato and Campbell's condensed tomato product information instructs shoppers to transfer unused soup to a suitable container, refrigerate it and use it within two days.