For a flavoured breakfast drink, choose an explicitly labelled no-added-sugar lemonade if that precise claim matters, but check the ingredients: Tesco No Added Sugar Cloudy Lemonade contains sucralose. Plain soda water suits a preference for neither listed sugar nor sweeteners; Schweppes Slimline Tonic Water is a different choice if you want quinine bitterness and accept aspartame. Do not treat ‘light’ as another way of saying ‘no added sugar’: Fever-Tree Refreshingly Light Indian Tonic lists fructose, while Fentimans Naturally Light Tonic lists sugar.
Who is each drink for?
Breakfast drinkers seeking a no-added-sugar claim
If you want citrus flavour and the exact claim matters, look for it on the pack, then read the ingredients too. Tesco No Added Sugar Cloudy Lemonade lists sucralose, so the claim does not make it an unsweetened drink.
Shoppers avoiding sugar and sweeteners
Plain soda water offers a sparkling base without lemonade flavour or tonic bitterness. Fentimans Soda Water lists carbonated water, salt and sodium bicarbonate, with 0g sugar per 100ml.
Tonic drinkers looking for zero sugar
If quinine bitterness appeals more than lemonade, Schweppes Slimline Tonic Water lists 0g sugars per 100ml. It also lists aspartame, which matters if you prefer to avoid that sweetener.
What should you check before choosing?
Decide what you want the drink to taste like, then check the claim, ingredients and nutrition on the same serving basis.
| Priority | What to check | Your needs |
| No-added-sugar claim |
Look for the exact claim on the pack. Read the ingredients as well: Tesco No Added Sugar Cloudy Lemonade lists sucralose. |
I want a flavoured drink carrying a no-added-sugar claim, and I am comfortable with its listed sweetener. |
| Sweetener choice |
Check for named sweeteners. Schweppes Slimline Tonic Water lists aspartame; Fentimans Soda Water lists carbonated water, salt and sodium bicarbonate. |
If I want to avoid non-sugar sweeteners altogether, plain soda water is more relevant than sweetened lemonade or slimline tonic. |
| Flavour |
Choose between citrus lemonade, quinine-flavoured tonic and plain soda water. A sugar figure alone will not tell you which you would prefer to drink. |
For breakfast, I might want lemon flavour, tonic bitterness or simply a sparkling base. |
| ‘Light’ wording |
Read the ingredient list and sugars per 100ml. Fever-Tree Refreshingly Light Indian Tonic lists fructose; Fentimans Naturally Light Tonic lists sugar and 3.4g sugars per 100ml. |
I do not want to mistake a light tonic for a drink that meets my no-added-sugar requirement. |
| Comparable portions |
Compare nutrition per 100ml, then consider how much you usually pour. Pack sizes and suggested servings can differ. |
I want the figures to describe comparable amounts, rather than judging one bottle or serving against another. |
Common label mix-ups
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Treating ‘light’ as ‘no added sugar’
A light tonic can still list a sweetening ingredient: Fever-Tree Refreshingly Light Indian Tonic lists fructose, and Fentimans Naturally Light Tonic lists sugar.
If the no-added-sugar claim is essential, check for that claim and read the ingredient list rather than relying on ‘light’ wording.
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Assuming no added sugar means no sweetener
Tesco No Added Sugar Cloudy Lemonade lists sucralose. A no-added-sugar claim therefore does not answer a separate question about non-sugar sweeteners.
Check for named sweeteners before buying. If you want an unsweetened sparkling base, compare the ingredients of plain soda water instead.
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Comparing different serving sizes
A figure for a full serving and one for 100ml describe different quantities, even when both appear on drink labels.
Start with the per-100ml figures, then use the amount you expect to pour at breakfast to put them in context.
Relevant brand and product references
These distinctions concern the named drinks, not every mixer or soft drink sold under each brand.
Tesco
Tesco No Added Sugar Cloudy Lemonade is a citrus-flavoured sparkling option carrying the no-added-sugar claim.
- Its product listing identifies lemon juice from concentrate.
- It also lists sucralose, so it does not suit a preference for an unsweetened drink.
Schweppes
Schweppes Slimline Tonic Water provides a quinine-flavoured alternative to lemonade.
- Tesco Groceries lists 0g sugars per 100ml for the 12x150ml pack.
- Its ingredients include aspartame.
Fentimans
The brand’s plain soda water and Naturally Light Tonic Water answer different ingredient preferences.
- Fentimans Soda Water lists carbonated water, salt and sodium bicarbonate, with 0g sugar per 100ml.
- Fentimans Naturally Light Tonic Water lists sugar and 3.4g sugars per 100ml; ‘light’ does not make it plain soda water.
Fever-Tree
Fever-Tree Refreshingly Light Indian Tonic Water is a tonic option, not an unsweetened soda water.
- Its listed ingredients include fructose, so check the pack if avoiding added sweetening ingredients is your priority.
Britvic
Britvic provides a company-wide calorie statement rather than an ingredient description for a particular breakfast mixer.
- Britvic says 98% of its owned drinks made and sold in Great Britain and Ireland are low or no calorie.
- That portfolio figure does not establish whether an individual mixer carries a no-added-sugar claim; check the product label.
Joybuy product options
These options cover a slimline tonic for people who want quinine flavour and a plain sparkling mineral water for those who would rather have a neutral drink. Check the pack if the exact no-added-sugar claim is essential.
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Schweppes Slimline Tonic Water 12x150ml
Choose this tonic route if you prefer quinine flavour to lemonade at breakfast and accept aspartame. Tesco Groceries lists 0g sugars per 100ml for this 12x150ml variant and names aspartame in its ingredients; check the pack if you require an explicit no-added-sugar claim.
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San Pellegrino Sparkling Natural Mineral Water 6 X 0.5L
This plain sparkling-water option suits a preference for neither lemonade flavour nor tonic bitterness. The pack contains 6 X 0.5L bottles; check its current ingredients and label if avoiding sweeteners or requiring an explicit no-added-sugar claim is important to you.
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Frequently asked questions
Does ‘no added sugar’ mean a mixer has no sweetener?
No. A no-added-sugar claim does not by itself rule out non-sugar sweeteners: Tesco No Added Sugar Cloudy Lemonade lists sucralose. Read the ingredients if sweetener choice affects your purchase.
Is a ‘light’ tonic the same as a no-added-sugar drink?
Not necessarily. Fever-Tree Refreshingly Light Indian Tonic Water lists fructose, while Fentimans Naturally Light Tonic Water lists sugar and 3.4g sugars per 100ml. Check the exact claim and ingredients rather than using ‘light’ as a substitute for either.
Which sparkling option avoids both listed sugar and sweeteners?
Plain soda water is the relevant route if you do not need lemonade or tonic flavour. Fentimans Soda Water lists carbonated water, salt and sodium bicarbonate, with 0g sugar per 100ml; check the ingredients of the particular drink you buy.