For an everyday fizzy drink, start with plain sparkling water: Diabetes UK describes water as an all-round drink, and the NHS suggests sparkling water if you do not like still water. If you prefer flavour, check the ingredients and the sugars and carbohydrate figures on the exact pack; unsweetened flavoured water, sweetener-based drinks and fruit-juice drinks are different choices, even when a label says ‘no added sugar’.
If you are replacing sugary fizzy drinks, the first distinction is between plain sparkling water and flavoured products that may contain juice or sweeteners. Diabetes UK recommends choosing sugar-free alternatives to sugary fizzy drinks outside hypo treatment.
A fruit-style name does not tell you how a drink is flavoured. Compare the ingredients and nutrition panel of the particular bottle or can rather than treating ‘diet’ or ‘no added sugar’ as a description of its total sugar content.
Check carbohydrate as well as sugars, using the per-100ml figures and the amount you expect to drink. Diabetes UK notes that polyols contain carbohydrate; if you adjust insulin, follow the individual advice from your diabetes healthcare team.
Decide whether you want plain water or a flavoured drink, then compare the exact products on the same nutrition basis. A claim about added sugar is not a substitute for the total sugars, carbohydrate and ingredients.
Choose it when: You want fizz without choosing a fruit- or sweetener-based drink; Diabetes UK describes water as an all-round drink.
Bear in mind: It will not provide the sweetness or fruit flavour of a flavoured drink.
Choose it when: You want a flavoured sparkling drink without sweeteners; Sanpellegrino describes S.Pellegrino Essenza as having zero sweeteners.
Bear in mind: ‘Flavoured water’ does not describe every product’s ingredients or nutrition, so check the particular flavour and pack.
Choose it when: A sweeter, fruit-style drink is what you want instead of a sugary fizzy drink, and its label fits your carbohydrate-counting needs.
Bear in mind: Some products also contain juice; ‘no added sugar’ does not establish that total sugars are zero.
| Priority | What to check | Your needs |
|---|---|---|
| Everyday drink | Check whether the product is plain sparkling water or a flavoured drink. For a flavoured product, read its ingredients rather than relying on the word ‘water’ in its name. | I want fizz for routine drinking, but do not need a sweet or fruit-style drink. Diabetes UK describes water as an all-round choice, while the NHS suggests sparkling water for people who dislike still water. |
| Sugars and carbohydrate | Compare both figures per 100ml, then consider the amount you will drink. Check for juice and for naturally occurring sugar even when the pack says ‘no added sugar’. | If I count carbohydrate, the total in my serving matters more than a front-of-pack claim. Sanpellegrino says its Zero Added Sugar fruit drinks contain naturally occurring sugar. |
| Flavour and sweeteners | Read the ingredient list for sweeteners and juice. Check the exact range: an unsweetened flavoured water is not necessarily formulated like a sweetener-based fruit drink. | When I want flavour, I would rather choose knowingly between an unsweetened option and a sweeter drink. Tesco lists sucralose and apple juice concentrate in its Apple & Raspberry sparkling water. |
| Hypo treatment | Keep everyday sugar-free drinks separate from the treatment in your personal diabetes care plan; a sugar-free sparkling drink is not a substitute for sugar when treating a hypo. | I need my everyday drink choice to stay distinct from my agreed hypo treatment. Diabetes UK distinguishes sugar-free alternatives for ordinary drinking from sugary fizzy drinks used to treat hypos. |
Flavoured products can have different ingredients and nutrition. Tesco lists apple juice concentrate and sucralose in its Apple & Raspberry sparkling water; the M&S and Sainsbury’s flavoured examples also list sweeteners.
Use the product name to find the drink, then read its ingredients and compare sugars and carbohydrate on the nutrition panel.
Sanpellegrino states that its Zero Added Sugar fruit-drink range contains naturally occurring sugar. The claim describes added sugar, not the drink’s total sugars.
Check the total sugars and carbohydrate figures for the particular can or bottle, especially if you count carbohydrate.
A sugar-free sparkling drink does not provide the sugar needed for hypo treatment. Diabetes UK treats sugary fizzy drinks as a possible hypo-treatment drink, not as its usual everyday recommendation.
Keep your agreed hypo treatment separate from your everyday drinks and follow your personal diabetes care plan.
The figures you use for carbohydrate counting or an ingredient preference need to describe the product you actually buy.
Read the current pack for its serving size, nutrition and ingredients before relying on an earlier listing.
These examples illustrate different formulations within sparkling-water ranges; a brand name alone does not establish the ingredients of every drink it sells.
A plain sparkling spring-water example for shoppers who want water rather than a fruit-style drink.
A carbonated mineral-water example when you prefer a plain branded option.
The distinction here is between sparkling-water and fruit-drink ranges, not simply between brand names.
A flavoured sparkling-water example that shows why the ingredients matter alongside the drink’s name.
Its range includes plain sparkling spring water and separate flavoured drinks, so choose by product rather than by retailer.
A flavoured sparkling-water example for shoppers comparing sweetener ingredients.
These bottled options suit the plain sparkling-water route if you want fizz without selecting a flavoured drink. If you count carbohydrate, check the nutrition panel on the pack you buy rather than assuming every listing gives the same detail.
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A plain sparkling mineral-water choice if you want bottled fizz rather than a flavoured drink. The pack contains six 0.5L bottles; check the current nutrition panel if you count carbohydrate.
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An eight-bottle sparkling-water option for routine drinking when you prefer a plain drink to a fruit-style one. Each bottle is 500ml; use the current pack for any carbohydrate figures you need.
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A plain sparkling spring-water option in eight 500ml bottles if you want to avoid choosing a flavoured formulation. Check sugars and carbohydrate on the current pack if those figures form part of your individual plan.
Plain sparkling water is a straightforward everyday water choice: Diabetes UK describes water as an all-round drink, and the NHS suggests sparkling water if you do not like still water. Check that the product is plain water rather than assuming every flavoured sparkling drink has the same ingredients.
No. Sanpellegrino states that its Zero Added Sugar fruit drinks contain naturally occurring sugar. Compare total sugars and carbohydrate on the particular drink’s nutrition panel, including the amount you plan to have.
No. Sweetener-based drinks have a different ingredient profile: the listed M&S, Tesco and Sainsbury’s flavoured examples contain sweeteners, and Tesco’s Apple & Raspberry product also contains apple juice concentrate. Read the exact product’s ingredients and nutrition panel before choosing.
No. A sugar-free drink is not a substitute for the sugar needed to treat a hypo. Diabetes UK distinguishes sugary fizzy drinks used for hypo treatment from sugar-free alternatives for ordinary drinking; follow your personal diabetes care plan.
Compare sugars and carbohydrate on the same basis, usually per 100ml, then account for how much you will drink. Check the ingredient list for juice and sweeteners too; if another product gives values per 100g, do not treat those figures as though they were stated per 100ml.