For train food, plain sparkling water is a straightforward choice if you want to avoid both sugars and sweeteners: Highland Spring describes its water as having nothing added but bubbles. If you want flavour, S.Pellegrino says Essenza contains no sugars or sweeteners, while Sainsbury's no-added-sugar Apple & Elderflower contains sweeteners. Check total sugars and pack size as well as the front label: M&S's juice-based no-added-sugar Apple & Elderflower lists 6.6g sugars per 100g.
Plain sparkling water keeps the ingredient choice simple. Highland Spring describes its water as having nothing added but bubbles; Perrier says its carbonated mineral water has no sugar. For flavour, S.Pellegrino describes Essenza as containing no sugars or sweeteners.
Sainsbury's Apple & Elderflower is a flavoured, no-added-sugar option if sweeteners suit your preferences. Its ingredients list acesulfame K and sucralose, so it is not an option for someone avoiding sweeteners.
A no-added-sugar claim is not the same as a zero-sugar nutrition value. M&S's juice-based Apple & Elderflower drink lists 6.6g sugars per 100g; compare that figure with your intended serving rather than relying on the front of the pack.
Decide whether total sugars or sweeteners matter to you, then choose a pack you can comfortably take onto the train.
| Priority | What to check | Your needs |
|---|---|---|
| Total sugars | Read the sugars value per 100ml or 100g and note which measure the label uses. M&S lists 6.6g per 100g for its no-added-sugar, juice-based Apple & Elderflower drink. | I want to know how much sugar is in the drink, not just whether sugar was added. |
| Sweeteners | Check the ingredients separately from the no-added-sugar claim. Sainsbury's lists acesulfame K and sucralose in its Apple & Elderflower flavoured water. | If I avoid sweeteners, I need a plain water or a flavoured line that explicitly says it contains none. |
| Flavour | Distinguish plain water, flavoured water and juice-based drinks. S.Pellegrino says Essenza has no sugars or sweeteners; M&S says its Apple & Elderflower drink contains over 60% juice. | I would like flavour with my train food, but I still want to choose what kind of drink provides it. |
| Pack size | Check the size of each drink and whether you are buying a multipack. Highland Spring lists a 500ml bottle; the Sainsbury's and M&S examples are 1L and 1.32L respectively. | For a journey on my own, I would rather carry one drink than find room for a sharing-size bottle. |
| Frequent sipping | Do not assume sugar-free fizz is tooth-neutral. Northumbria Healthcare NHS Foundation Trust says sugar-free fizzy drinks can still be acidic and contribute to tooth erosion. | If I often sip a drink throughout the journey, acidity matters to me as well as its sugars value. |
M&S's no-added-sugar Apple & Elderflower sparkling drink contains juice and lists 6.6g sugars per 100g.
Compare the sugars line on the nutrition label, keeping its per-100g or per-100ml basis in mind.
Sainsbury's no-added-sugar Apple & Elderflower flavoured water lists acesulfame K and sucralose.
If you avoid sweeteners, read the ingredients list or choose a product explicitly described as containing none.
A 1L or 1.32L bottle takes more room than a 500ml drink. The Office of Rail and Road notes that crowding is common on trains and at stations.
Choose a smaller sealed drink when carrying space is limited, or plan where you will keep a larger bottle without obstructing others.
Northumbria Healthcare NHS Foundation Trust says sugar-free fizzy drinks can still be acidic and contribute to tooth erosion.
Consider how often you sip fizzy drinks; ask a dental professional for advice if erosion is a concern for you.
These brand examples illustrate different label and ingredient choices; check the exact product and pack before buying.
A plain sparkling spring-water option for travellers who do not want added flavour or sweeteners.
Plain carbonated mineral water for someone seeking an unflavoured drink.
A choice between plain sparkling mineral water and the Essenza flavoured line.
Its Apple & Elderflower flavoured water suits shoppers who accept sweeteners in a no-added-sugar drink.
Its juice-based Apple & Elderflower sparkling drink is a different proposition from plain or sweetened flavoured water.
These are plain sparkling-water multipacks with individual 500ml or 0.5L drinks to consider taking with train food. They do not represent the flavoured-drink choices discussed above.
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One 500ml can is a single-drink format for a journey. The cans are described as resealable and come in a 12-pack; consider taking an individual can rather than carrying the full pack.
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An individual 0.5L bottle is an option for a single train journey; this listing is for six bottles. If you need to close your drink between stops, check the bottle closure before buying.
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One 500ml bottle can be taken with train food while the rest of the eight-bottle pack stays at home. Check the closure if you plan to put an opened bottle away during the journey.
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Highland Spring describes its sparkling water as having nothing added but bubbles. This eight-pack contains 500ml bottles; check the pack label for the exact sugars value if you need it, and the closure if you need to put an opened bottle away.
No. M&S's no-added-sugar Apple & Elderflower sparkling drink contains juice and lists 6.6g sugars per 100g. Check the sugars line on the nutrition label, including whether it is given per 100g or per 100ml.
Yes. Sainsbury's no-added-sugar Apple & Elderflower flavoured water lists acesulfame K and sucralose. If you avoid sweeteners, read the ingredients or look for a product explicitly described as containing none.
For one person, a sealed 500ml drink is worth considering before a 1L or 1.32L sharing-size bottle. Highland Spring lists a 500ml bottle, while the Office of Rail and Road notes that crowding on trains and at stations is common; choose a container you can carry and store without obstructing others.
No such conclusion follows from the sugars label. Northumbria Healthcare NHS Foundation Trust says sugar-free fizzy drinks can still be acidic and contribute to tooth erosion. If erosion concerns you, ask a dental professional for individual advice.