If you want a fizzy cordial-style drink while managing diabetes, a no-added-sugar concentrate mixed with sparkling water lets you prepare a drink at the dilution shown on its label. A ready-made sparkling drink avoids mixing, but neither format nor a ‘no added sugar’ claim tells you the carbohydrate amount: compare the nutrition values for the portion you will drink, and check that a concentrate is intended for sparkling water.
If you are replacing a sugary fizzy drink for ordinary refreshment, check carbohydrate and sugars in the drink as served, rather than relying on a front-of-pack claim. Diabetes UK recommends sugar-free alternatives to sugary fizzy drinks outside hypo treatment.
A stated serving size and a repeatable dilution make it easier to account for what is in a glass of cordial. A no-added-sugar drink should not be assumed to provide the carbohydrate needed to treat a hypo.
You can look for a cordial explicitly described for mixing with sparkling water, or choose a carbonated drink that is ready to serve. Oxford Health NHS Foundation Trust notes that fizzy and fruit-flavoured drinks can be acidic, so sugar content is not the only consideration if you sip them frequently.
Start with the drink you will actually pour: check its prepared-serving nutrition, then decide whether measuring a concentrate or opening a ready-made drink suits you.
| Priority | What to check | Your needs |
|---|---|---|
| Carbohydrate and sugars | Compare values for the drink as prepared, using the same portion size. Tesco Groceries lists 1.6g carbohydrate and 1.1g sugars per 250ml for Belvoir Farm No Added Sugar Sicilian Lemon & Lime Cordial at 1:6 dilution; Ocado lists 2.5g of each per 250ml diluted serving for M&S Apple & Elderflower High Juice. | I need to account for what is in my glass, including any naturally occurring sugars in a no-added-sugar drink. |
| Mixing and dilution | Look for an explicit sparkling-water preparation statement and follow the labelled dilution when using its nutrition figures. Tesco Groceries describes the Belvoir Farm lemon-and-lime cordial as suitable for still or sparkling water. | I want cordial flavour with fizz and am willing to measure the concentrate. A stronger pour changes the amount of cordial in my glass. |
| Ready-made fizz | Check the nutrition panel for the portion you intend to drink. A carbonated product needs no dilution, but it may be a different type of drink: the M&S Diet Sparkling Fiery Ginger Beer listed by Ocado is ginger beer, not cordial. | Opening a drink is simpler for me than mixing one, even if the flavour is less like fruit cordial. |
| Purpose and acidity | Keep ordinary drink choices separate from your agreed hypo treatment. For frequent sipping, bear in mind Oxford Health NHS Foundation Trust’s warning that acidic drinks, including fizzy and fruit-flavoured ones, can wear away enamel. | I want a fizzy drink for ordinary refreshment, without mistaking a no-added-sugar option for hypo treatment or overlooking acidity. |
Fruit-juice-based squash can contain naturally occurring sugars. Ocado and Waitrose & Partners each list 2.5g sugars per 250ml prepared serving for their respective M&S and Waitrose apple-and-elderflower no-added-sugar products.
Compare both carbohydrate and sugars for the prepared portion, not just the wording on the front of the bottle.
A cordial’s stated prepared-serving values depend on its dilution. Pouring more concentrate into the same-sized glass changes the amount consumed.
Use the labelled mixing ratio when applying its nutrition figures, and compare drinks at a consistent serving size.
Diabetes UK distinguishes sugar-free drinks for ordinary use from sugary drinks used to treat low blood glucose.
Follow your agreed hypo-treatment plan rather than assuming a no-added-sugar cordial will serve that purpose.
Oxford Health NHS Foundation Trust identifies fizzy and fruit-flavoured drinks among acidic drinks that can contribute to enamel erosion.
If you regularly sip fizzy drinks, consider when and how often you have them; plain water remains another option for everyday drinking.
These examples show why the nutrition panel and preparation instructions matter more than a brand name alone.
Its lemon-and-lime concentrate offers a documented sparkling-water mixing option; its sparkling elderflower drink is pre-mixed.
Its apple-and-elderflower high juice is a concentrate, while its sparkling fiery ginger beer is a different, ready-to-drink option.
Its Apple & Elderflower No Added Sugar High Juice is a fruit-juice-based squash with prepared-serving nutrition information.
Tesco Groceries lists own-label no-added-sugar squash alongside other cordial and squash products.
Tesco Groceries lists Robinsons no-added-sugar squash among its cordial and squash options.
These are ready-to-drink sparkling alternatives, not concentrates for making fizzy cordial. If you specifically want to mix cordial with sparkling water, use the preparation and nutrition checks above rather than treating these drinks as substitutes for a concentrate.
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A green-apple sparkling drink for someone who wants fizz without mixing cordial. It comes as three 480ml bottles; check the current pack’s carbohydrate and sugars panel for the amount you drink.
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A white-peach sparkling water for a ready-to-drink fruit flavour rather than a cordial you can dilute. Check the current bottle label when comparing carbohydrate and sugars for your serving.
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A ready-to-drink cola in 330ml cans, rather than a fruit cordial or squash. If ingredients such as caffeine or a source of phenylalanine matter to you, check the current can label.
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A ready-to-drink lemon-and-lime option in 330ml cans. It offers that flavour without measuring a concentrate, but it is not cordial; check the current can label for nutrition and ingredients.
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An apple-flavoured fizzy drink in 330ml cans, not a concentrate. ‘Sugar-free’ does not by itself answer a carbohydrate-counting question, so compare the current can’s carbohydrate and sugars values.
Look for a concentrate whose instructions explicitly allow mixing with sparkling water, then check its nutrition at the stated dilution. Tesco Groceries describes Belvoir Farm No Added Sugar Sicilian Lemon & Lime Cordial for still or sparkling water and provides values for a 1:6 dilution.
No. Fruit-juice-based drinks can contain naturally occurring sugars. Ocado and Waitrose & Partners each list 2.5g sugars per 250ml prepared serving for their respective M&S and Waitrose apple-and-elderflower no-added-sugar products, so compare the prepared-serving panel.
You can change the strength of a concentrate, but its published prepared-serving nutrition figures apply to the stated mixing ratio. Measure what you pour if you need to account for the carbohydrate in your glass; NHS guidance also advises diluting squash and cordial well.
Do not rely on it for that purpose. Diabetes UK distinguishes sugar-free alternatives for ordinary drinking from sugary drinks used for hypos; follow your agreed hypo-treatment plan.
No. Oxford Health NHS Foundation Trust notes that fizzy and fruit-flavoured drinks can be acidic and that acid can wear away enamel. Consider how often you sip them as well as their sugar content.