Workers cutting down on sugar at lunch
If you want a fizzy drink with a packed lunch, compare the sugars per 100ml and per can on the exact version you plan to buy. A familiar flavour can come in both standard and zero-sugar versions.
Who is this choice for?
Cola drinkers avoiding caffeine
Zero sugar does not mean caffeine-free. Pepsi UK identifies caffeine in standard Pepsi MAX and offers a separately named Pepsi MAX No Caffeine variant; Coca-Cola GB likewise has a Zero Sugar Zero Caffeine line.
Shoppers who prefer non-cola flavours
Lemon-and-lime and fruit-flavour ranges include different versions. Coca-Cola GB lists 0g sugars for Sprite Zero and 0.4g per 100ml for Fanta Fruit Twist Zero, so check the particular flavour rather than assuming every drink labelled Zero has the same figure.
What should you check?
Start with the exact can’s sugar figure, then check caffeine and ingredients if they affect your choice. Match the can and pack size to the lunches you are planning.
| Priority | What to check | Your needs |
|---|---|---|
| Sugars | Compare sugars per 100ml and per can on the exact version. Pepsi UK lists 15g per 330ml can for standard Pepsi and 0g for Pepsi MAX. | I want a fizzy drink at lunch while cutting down on sugar, without mistaking the standard can for the zero-sugar version. |
| Caffeine | Look for an explicit caffeine-free designation and check the ingredients. Pepsi UK lists caffeine in Pepsi MAX but offers Pepsi MAX No Caffeine. | If I prefer to avoid caffeine during the working day, a zero-sugar label on its own does not settle my choice. |
| Ingredients | Read the sweetener list and any phenylalanine statement on the current can, particularly if an ingredient-specific restriction applies. | I need to know what sweetens the drink, not just whether its sugars figure is zero. |
| Flavour and version | Check the full range and flavour name. Coca-Cola GB lists 0g sugars for Sprite Zero, while Fanta Fruit Twist Zero lists 0.4g per 100ml. | For a non-cola lunch drink, I want the flavour I enjoy and a sugar figure for that exact version. |
| Can and pack size | Compare can volume, number of cans and total volume. Joybuy Insights notes that 24 × 250ml is 6 litres, whereas 24 × 330ml is 7.92 litres. | A pack needs to cover the lunches I have planned without taking more storage space than I can spare. |
Common buying mistakes
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Treating every version of a brand as interchangeable
The difference can matter in one lunch can: Pepsi UK lists 15g sugars per 330ml for standard Pepsi and 0g for Pepsi MAX.
Check the full product name and nutrition panel before adding a can marked Zero, Diet or Max to your basket.
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Assuming zero sugar also means no caffeine or sweeteners
Coca-Cola Zero Sugar and standard Pepsi MAX contain caffeine and sweeteners. Aspartame-containing drinks may carry a phenylalanine statement; the Food Standards Agency identifies undeclared aspartame as a possible risk for people with phenylketonuria (PKU).
Choose an explicitly caffeine-free line if avoiding caffeine, and check the current ingredient list and warning where they matter to you.
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Choosing a multipack by can count alone
Equal can counts need not mean equal quantities: Joybuy Insights gives 6 litres for 24 × 250ml and 7.92 litres for 24 × 330ml.
Check the can size and total volume against the lunches planned and your available fridge or cupboard space.
Relevant drink brands and ranges
Coca-Cola
Coca-Cola GB lists 0g sugars for Coca-Cola Zero Sugar and offers a separately named Zero Sugar Zero Caffeine line.
- The two lines distinguish a zero-sugar cola from a caffeine-free zero-sugar choice.
- Standard Coca-Cola Zero Sugar lists caffeine flavouring and sweeteners, including aspartame; choose the specifically caffeine-free line when caffeine avoidance matters.
Pepsi
Pepsi UK lists 0g sugars for Pepsi MAX and has a separately named Pepsi MAX No Caffeine product.
- The range offers distinct cola options for shoppers comparing sugar and caffeine.
- Standard Pepsi MAX contains caffeine. The No Caffeine variant still requires an ingredient check if you avoid particular sweeteners.
Sprite
Sprite Zero is a lemon-and-lime alternative to cola; Coca-Cola GB lists 0g sugars for this variant.
- It provides a named zero-sugar option for shoppers who prefer lemon-and-lime flavour.
- Its listed sweeteners include aspartame, acesulfame K and sucralose, so check the current ingredients when those details matter.
Fanta
Coca-Cola GB lists 0.4g sugars per 100ml for Fanta Fruit Twist Zero and 4.5g per 100ml for regular Fanta Orange.
- Named fruit-flavour variants give shoppers specific nutrition panels to compare.
- Fruit Twist Zero is not listed at 0g sugars per 100ml; do not apply one flavour’s figure to another.
Dr Pepper
Tesco Groceries lists Dr Pepper Zero alongside its wider UK fizzy-drink selection.
- It is a named Zero variant to consider if you prefer Dr Pepper’s flavour.
- Check the specific product’s nutrition, ingredients and pack size before comparing it with another drink.
Tesco
Tesco Groceries lists own-brand options including Diet Lemonade, Lemon & Lime Zero and No Added Sugar Cream Soda.
- The named lines offer several flavours and label types to compare.
- Diet, Zero and No Added Sugar do not establish identical ingredients or nutrition across the range; read each product’s label.
Joybuy options for packed lunches
These canned cola, lemon-and-lime and apple-flavour options cover different office-lunch preferences. Check the current label for the sugar, caffeine and ingredient details that matter to your choice.
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Diet Coke No Caffeine 24 × 330ml
A named no-caffeine cola option for individual office lunches. The title specifies 24 cans of 330ml; check the current nutrition panel and sweetener statement if those details affect your choice.
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7UP Zero 8 × 330ml
A non-cola option in eight 330ml cans for packed lunches. Check the current sugar and ingredient details on the can; if calories matter to your choice, use the current nutrition panel.
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Pepsi MAX 24 × 330ml
For a zero-sugar cola with lunch, Pepsi UK lists 0g sugars for Pepsi MAX. This pack contains 24 cans of 330ml. Standard Pepsi MAX contains caffeine, so choose a specifically caffeine-free variant instead if you need to avoid it.
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Coca-Cola Zero 12 × 330ml
A cola option in 12 individual 330ml cans. Coca-Cola GB lists 0g sugars for its Coca-Cola Zero Sugar line, which contains caffeine flavouring and sweeteners; check this pack’s current label if avoiding caffeine or an ingredient is important.
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Tango Apple Sugar-Free 24 × 330ml
An apple-flavour option in 24 individual 330ml cans. If you avoid caffeine, check the current can before choosing it; also compare the ingredient list and the space needed to store a 24-can pack.
Frequently asked questions
Is a zero-sugar fizzy drink automatically caffeine-free?
No. Coca-Cola GB and Pepsi UK list caffeine in Coca-Cola Zero Sugar and standard Pepsi MAX respectively. If avoiding caffeine matters, look for an explicitly named variant such as Coca-Cola Zero Sugar Zero Caffeine or Pepsi MAX No Caffeine, and check its current label.
What matters most when choosing a can for a packed lunch?
Compare sugars per 100ml and per can for the exact drink, then check caffeine, sweeteners and can size against your needs. For a multipack, the number of cans alone does not tell you its total volume.
Why does a zero-sugar drink mention phenylalanine?
A drink containing aspartame may state that it contains a source of phenylalanine. This is an important label check for people with phenylketonuria (PKU): the Food Standards Agency identifies undeclared aspartame as a possible risk for them. Check the current can’s ingredients and statement.
What can I choose instead of a regular fizzy drink when cutting sugar?
The NHS suggests swapping sugary drinks for water, sugar-free or no-added-sugar drinks when cutting down on sugar. If you prefer a fizzy drink with lunch, compare the exact version’s sugar figure; a Zero or Diet name does not answer separate questions about caffeine or sweeteners.