If you plan to sleep soon after a night shift, start by looking for a drink explicitly labelled caffeine-free, then compare sugars per 100ml: caffeine-free cola and fruit-flavoured options offer different tastes. A zero-sugar cola that contains caffeine may suit a different point in your shift, but zero sugar does not mean caffeine-free. Check the exact variant and serving size, particularly where a name containing “Zero” sits alongside a nutrition panel showing some sugar.
If a fizzy drink will accompany a late snack, check caffeine separately from sugar. Queen Victoria Hospital NHS Foundation Trust advises avoiding caffeine-containing soft drinks at least four hours before bedtime.
Cola flavour does not settle either question. Coca-Cola’s GB product information lists 0g sugars per 100ml for Coca-Cola Zero Sugar but includes caffeine in its ingredients; its caffeine-free variant is a separate choice.
Orange and lemon-lime drinks provide alternatives to cola. Compare the precise variant’s caffeine information and sugars per 100ml rather than assuming products across a flavour range share a formulation.
Decide when you expect to sleep, then compare caffeine, sugars and flavour on the exact drink you intend to buy.
| Priority | What to check | Your needs |
|---|---|---|
| Caffeine | Look for an explicit caffeine-free variant and check its ingredients. Queen Victoria Hospital NHS Foundation Trust advises avoiding caffeine-containing soft drinks at least four hours before bedtime. | “I expect to sleep after my shift, so I want to distinguish caffeine-free cola from a zero-sugar cola that still contains caffeine.” |
| Sugars | Compare sugars per 100ml, then consider the amount in the can you will drink. Pepsi UK lists 4.5g sugars per 100ml for regular Pepsi, while its Pepsi Max Caffeine-Free page lists 0g per 100ml. | “I want to compare the actual drinks and portions, not assume that a familiar brand name tells me the sugar content.” |
| Flavour | Choose between cola, orange and lemon-lime after checking the exact variant. Tesco lists Fanta Orange Zero as caffeine-free with 0.4g sugars per 100ml; Coca-Cola GB lists different sugar values for other Fanta flavours. | “If I would rather have orange than cola, I still want to know what the particular orange drink contains.” |
| Ingredients | Read the sweetener list and any source-of-phenylalanine notice on the pack. Do not assume all drinks labelled “Zero” have identical ingredients. | “Particular sweeteners or a phenylalanine notice matter to my choice, so I will check the can I am buying.” |
| Can size | Check both the number of cans and their individual volume. Use per-100ml nutrition to compare drinks, then the can size to understand a serving. | “I want individual cans for shift snacks and need to compare what is in one can, not just the multipack description.” |
Coca-Cola GB lists caffeine in Coca-Cola Zero Sugar’s ingredients, despite listing 0g sugars per 100ml. Coca-Cola Zero Sugar Caffeine Free is a different variant.
If you are buying for the period before post-shift sleep, check for caffeine-free wording and read the ingredients on the exact pack.
Pepsi UK lists 4.5g sugars per 100ml and 15g per 330ml can for regular Pepsi; Pepsi Max Caffeine-Free has its own, different nutrition panel.
Match the full product name before comparing sugars per 100ml and the amount in the can.
Coca-Cola GB lists 4.5g sugars per 100ml for Fanta Orange, while Tesco lists 0.4g per 100ml for Fanta Orange Zero. “Fanta” alone does not identify the formulation.
Check the precise flavour and variant on the pack, especially when choosing between standard and Zero versions.
These label examples help distinguish variants; a brand name alone does not establish a drink’s caffeine or sugar content.
Its GB product pages distinguish Coca-Cola Zero Sugar from Coca-Cola Zero Sugar Caffeine Free.
Pepsi Max Caffeine-Free and regular Pepsi serve different caffeine and sugar preferences.
Fanta Orange Zero is an orange-flavoured option for someone who does not want cola.
Sprite Zero offers a lemon-lime flavour rather than a cola or orange one.
These multipacks include cola and non-cola choices. Compare the named variant and its pack label against your sleep timing, flavour preference and preferred can size.
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A lemonade option if you would rather have a drink other than cola. The pack contains 24 × 330ml cans; check the current can for caffeine, sugars and sweeteners before choosing it for a late-shift snack.
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A cola variant named No Caffeine for shoppers comparing drinks before post-shift sleep. The pack contains 24 × 330ml cans; check the current can for its sugars and ingredients.
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A caffeine-free cola option when you want to check caffeine separately from sugars. The pack contains 24 × 330ml cans; the Joybuy product information lists 0g sugars per 100ml and 2 kcal per can. Check the current can for sweeteners and any phenylalanine notice.
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Another option to compare if you would rather not have cola. The pack contains 24 × 330ml cans; check the precise flavour, caffeine information and sugars on the current can.
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An orange-flavoured option rather than cola. The pack contains 8 × 330ml cans; Joybuy’s product information lists 0.4g sugars and 3.1 kcal per 100ml, despite “Zero Sugar” in the name. Tesco identifies Fanta Orange Zero as caffeine-free. Check the current can’s nutrition and ingredients before buying.
Start with a drink explicitly labelled caffeine-free, then compare its sugars and flavour. Queen Victoria Hospital NHS Foundation Trust advises avoiding caffeine-containing soft drinks at least four hours before bedtime and notes that caffeine can remain in the body for up to eight hours. Pepsi UK identifies Pepsi Max Caffeine-Free as a caffeine-free cola, while Tesco identifies Fanta Orange Zero as a caffeine-free orange option.
No. Coca-Cola GB lists 0g sugars per 100ml for Coca-Cola Zero Sugar but includes caffeine in its ingredients. If caffeine matters for your shift schedule, choose an explicitly caffeine-free variant and check the exact pack.
Check caffeine, sugars per 100ml and per serving, can size, sweeteners and any source-of-phenylalanine notice. Use the current pack to confirm the formulation: for example, Tesco notes that product information can change, and its Fanta Orange Zero listing shows 0.4g sugars per 100ml despite the Zero name.