Workers sleeping soon after a shift
If you want a fizzy drink before planned daytime sleep, check for an explicit caffeine-free label as well as the sugars value. Coca-Cola GB and Pepsi UK identify separate zero-sugar colas without caffeine.
Who is this choice for?
Workers comparing sugar content
Compare the exact drinks on a per-100ml basis. Coca-Cola GB lists 0g sugars per 100ml for Coca-Cola Zero Sugar and 10.6g for Coca-Cola Original Taste; a different variant may have a different label.
Workers who want caffeine during a shift
If you deliberately choose a caffeinated cola, take account of when you intend to sleep. The Health and Safety Executive describes caffeine as an occasional strategy for shift workers while emphasising the importance of sleep.
What should you check?
Start with the sugars declaration, then check caffeine separately; neither label tells you the other answer.
| Priority | What to check | Your needs |
|---|---|---|
| Sugars | Read sugars per 100ml on the exact pack. Coca-Cola GB lists 0g for Coca-Cola Zero Sugar and 10.6g for Coca-Cola Original Taste. | I want to compare a regular cola with a zero-sugar version on the same basis, rather than judging by the brand name. |
| Caffeine | Look for an explicit caffeine-free statement or caffeine in the ingredients. Pepsi UK distinguishes Pepsi Max No Caffeine from Pepsi Max, whose flavourings include caffeine. | If I plan to sleep after work, I want to know whether this particular drink contains caffeine. If I choose caffeine during work, its timing matters. |
| Exact variant | Check both the formulation name and nutrition panel. Coca-Cola GB describes Fanta Orange as caffeine free, but lists 4.5g sugars per 100ml. | A fruit flavour appeals to me, but I do not want to mistake caffeine-free for zero-sugar. |
Common buying mistakes
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Assuming zero sugar means no caffeine
Coca-Cola Zero Sugar and Pepsi Max are distinct from their caffeine-free variants; their UK ingredient information identifies caffeine.
Check the exact pack for a caffeine-free statement if you intend to avoid caffeine before sleep.
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Assuming caffeine-free means zero sugar
Coca-Cola GB describes Fanta Orange as caffeine free and lists 4.5g sugars per 100ml.
Read the sugars value per 100ml independently of the caffeine wording.
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Using caffeine as a substitute for sleep
The Health and Safety Executive identifies sleep loss and fatigue as significant problems for shift workers and describes caffeine as an occasional strategy.
Consider a caffeine-free drink when caffeine conflicts with your planned sleep, and keep your sleep schedule in mind when choosing a drink during work.
Brand and retailer references
Use these ranges to identify formulations to compare; the brand name alone does not establish a drink’s sugars or caffeine content.
Coca-Cola
Its UK range includes regular, zero-sugar and caffeine-free zero-sugar cola.
- Coca-Cola GB lists 0g sugars per 100ml for Coca-Cola Zero Sugar and identifies Coca-Cola Zero Sugar Caffeine Free as containing no caffeine.
- Coca-Cola Original Taste lists 10.6g sugars per 100ml, so check the variant rather than relying on the brand.
Pepsi
Pepsi Max and Pepsi Max No Caffeine offer different caffeine choices within the cola range.
- Pepsi UK identifies Pepsi Max No Caffeine as having no caffeine and no sugar.
- Standard Pepsi Max lists caffeine in its flavourings. Check the exact variant and its ingredients, including sweeteners.
Fanta
A fruit-flavoured alternative if cola flavour is not essential.
- Coca-Cola GB describes Fanta Orange as caffeine free.
- Fanta Orange lists 4.5g sugars per 100ml; caffeine-free does not establish the sugars value of another Fanta variant.
Sprite
A lime-flavoured soft drink in the Coca-Cola GB range.
- Its flavour offers a non-cola option.
- Check the sugars and caffeine information on the specific pack before choosing it for either requirement.
Tesco
A retailer range in which to compare own-label and branded caffeine-free colas.
- Tesco Groceries lists an own-label caffeine-free diet cola alongside branded caffeine-free options.
- Check the current product listing and pack label for the formulation you intend to buy.
Joybuy fizzy-drink options
These options include caffeine-free cola and a non-cola drink, plus a caffeinated zero-sugar cola for a different point in the shift. Check each pack’s label against your sugars and caffeine priorities.
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Diet Coke No Caffeine, 24 × 330ml
A caffeine-free cola to consider when you plan to sleep after work. The pack contains 24 cans of 330ml; check its nutrition and ingredient label for your other requirements.
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Pepsi Max Caffeine Free, 24 × 330ml
A caffeine-free Pepsi Max option if you do not want caffeine before planned sleep. The pack contains 24 cans of 330ml; check the exact pack’s sugars and ingredients.
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Coca-Cola Zero Sugar, 24 × 330ml
Consider this cola if you want a zero-sugar variant and deliberately choose caffeine during the working part of your shift. Coca-Cola GB lists 0g sugars per 100ml for Coca-Cola Zero Sugar; the product contains caffeine, which may not fit a drink close to planned sleep. This pack contains 24 cans of 330ml.
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7UP Zero, 24 × 330ml
A non-cola option if you prefer a different flavour during a shift. The pack contains 24 cans of 330ml; check the exact label for sugars, caffeine and ingredients before choosing it for those requirements.
Frequently asked questions
Is a zero-sugar fizzy drink automatically caffeine free?
No. Coca-Cola GB and Pepsi UK identify caffeine in Coca-Cola Zero Sugar and Pepsi Max respectively, while selling separate caffeine-free variants. Check the exact product name and ingredients.
What if I plan to sleep after my night shift?
If you want to avoid adding caffeine before planned sleep, choose a drink explicitly labelled caffeine free; check sugars separately if that also matters to you. The Health and Safety Executive identifies sleep loss and fatigue as significant shift-work issues and describes caffeine as an occasional strategy rather than a replacement for sleep.
Does caffeine-free Fanta count as a zero-sugar drink?
Not on caffeine status alone. Coca-Cola GB describes Fanta Orange as caffeine free but lists 4.5g sugars per 100ml. Read the nutrition panel of the flavour and variant you are buying.
Do these zero-sugar colas contain sweeteners?
The cited Coca-Cola and Pepsi zero-sugar variants list sweeteners. Check the ingredients on the exact pack if a particular sweetener or ingredient statement matters to you.