Who is choosing a mixer?

Viewers avoiding added sugar

If the mixer itself needs a no-added-sugar claim, compare the claim with the ingredients and nutrition declaration. A lower-calorie tonic does not necessarily meet that requirement.

Hosts serving a small group

Individual 150ml cans make it easier to open one serve at a time. A 1L bottle is worth considering when several people will use it within the storage period stated on its pack.

Shoppers considering a lighter tonic

If a lower-calorie tonic is the priority rather than a strict no-added-sugar choice, read its ingredients first. Fever-Tree Refreshingly Light lists fructose, while Fentimans Naturally Light lists sugar.

What should you check?

Decide whether your requirement is no added sugar, a zero-sugar declaration or simply a lower-calorie tonic, then choose a serving format that fits the number of drinks you expect to make.

PriorityWhat to checkYour needs
Sugar claim Read the claim, ingredients and nutrition declaration together. Tesco lists 0g sugars per 100ml for Schweppes Slimline; M&S labels its Diet Indian Tonic Water no added sugar and lists under 0.1g sugars per 100g. Those figures use different measurement bases. I want the mixer to meet my sugar requirement, not just carry a “light” description.
Sweeteners Check the exact pack’s ingredients and warnings. Tesco lists aspartame and acesulfame K in its 1L Schweppes Slimline tonic; M&S lists sucralose in its Diet Indian Tonic Water. The NHS states that aspartame is unsuitable for people with phenylketonuria (PKU). If I need to avoid a particular sweetener, the ingredients matter as much as the sugar figure.
Serving format Compare the number and size of portions with the drinks you plan to make. Joybuy lists Schweppes Slimline as 12 × 150ml cans; M&S Diet Indian Tonic Water is a 1L bottle. Follow the bottle’s instructions after opening. For one or two drinks, I would rather open individual cans; for several serves, a bottle may be practical.
The whole drink Consider the mixer separately from anything added to it. A no-added-sugar mixer does not remove alcohol from a mixed drink. The NHS also notes that acidic carbonated drinks are associated with dental erosion. I want to judge the finished drink without treating its mixer’s sugar claim as a claim about everything in the glass.

Common buying mistakes

  • Reading “light” as “no added sugar”

    Fever-Tree lists fructose in Refreshingly Light Indian Tonic, and Fentimans lists sugar in Naturally Light Tonic. Neither ingredient list fits a strict no-added-sugar choice.

    Check the ingredients and the sugar declaration for the particular variant, rather than relying on “light” in its name.

  • Overlooking sweeteners and pack warnings

    Tesco’s listing for 1L Schweppes Slimline includes aspartame and acesulfame K and carries a phenylalanine statement. The NHS says aspartame is unsuitable for people with PKU.

    Read the warning and ingredients on the exact pack you intend to buy, especially if you avoid a particular sweetener.

  • Assuming sugar-free means free of acidity

    The NHS associates carbonated drinks with dental erosion because of their acid content. The mixer’s sugar declaration does not answer that separate question.

    Consider sugar content and acidity as distinct characteristics when comparing fizzy drinks.

  • Opening a large bottle for a single serve

    A 1L bottle may leave unused tonic after one or two drinks, whereas 150ml cans can be opened separately.

    Choose the format around the number of serves you expect and follow the bottle’s storage instructions after opening.

    An unfinished open bottle may leave mixer to use within its stated storage period.

Brand and retailer references

These product-line examples show why a diet, slimline or light name still needs an ingredients check; they are not a list of Joybuy stock.

Schweppes

Tesco lists its 1L Slimline Tonic with 0g sugars per 100ml; Joybuy lists a separate 12 × 150ml Slimline pack.

  • The listed formats offer a choice between a large bottle and portioned cans.
  • Tesco’s 1L ingredient list includes sweeteners and carries a phenylalanine statement. Check the label of the format you buy.

M&S

Its 1L Diet Indian Tonic Water carries a no-added-sugar claim and lists under 0.1g sugars per 100g.

  • The stated claim and nutrition declaration help distinguish this tonic from a product described only as light.
  • The ingredients list includes sucralose; read the purchased bottle’s label for its current details and storage instructions.

Fever-Tree

Refreshingly Light is a lighter-tonic range to consider when no added sugar is not a strict requirement.

  • Fever-Tree publishes an ingredients list for its Refreshingly Light Indian Tonic.
  • That Indian Tonic lists fructose, so its “light” name should not be read as a no-added-sugar claim.

Fentimans

Naturally Light Tonic is a reduced-calorie option rather than a strict no-added-sugar example.

  • Fentimans publishes ingredients and a nutrition panel for this tonic.
  • The ingredients include sugar, and the panel lists 3.4g sugars per 100ml.

Britvic

Britvic announced classic and zero-sugar 330ml Indian Tonic cans for grocery retailers in September 2023.

  • The announcement distinguishes a zero-sugar variant from the classic one.
  • A launch announcement does not establish the formulation or availability of a pack being sold now; check its current label.

Sainsbury’s

Its tonic category lists own-label Diet Indian Tonic Water, including lemon and lime versions.

  • The named variants give shoppers distinct flavours to compare.
  • Check each variant’s ingredients and nutrition declaration before treating “diet” as a no-added-sugar claim.

Tonic options on Joybuy

The Joybuy option here is a Schweppes Slimline can multipack for portioned tonic serves during the football. Check the pack’s sugar declaration and ingredients against your requirements.

Schweppes Slimline Tonic Water 12 × 150ml can multipack

Schweppes Slimline Tonic Water 12 × 150ml

The 12 × 150ml cans let you open individual tonic serves during the match. Joybuy’s ingredient listing includes aspartame; check the purchased pack’s sugar declaration and warnings, particularly if you need to avoid that sweetener.

View on Joybuy

Questions about mixer choices

Does “light” tonic mean no added sugar?

No. Fever-Tree Refreshingly Light Indian Tonic lists fructose, and Fentimans Naturally Light lists sugar and 3.4g sugars per 100ml. Read the ingredients and nutrition declaration of the variant you are considering.

Does no added sugar mean the nutrition panel must show 0g sugars?

No. M&S labels its Diet Indian Tonic Water no added sugar and lists under 0.1g sugars per 100g. Tesco lists 0g sugars per 100ml for Schweppes Slimline. Check both the claim and the stated amount, paying attention to the different measurement units.

What should I check about sweeteners in slimline tonic?

Read the ingredients and warnings on the exact pack. Tesco lists aspartame and acesulfame K in its 1L Schweppes Slimline tonic and includes a phenylalanine statement; the NHS says aspartame is unsuitable for people with PKU.

Should I choose cans or a large bottle for the match?

Choose by the number of serves you expect to make. Joybuy lists Schweppes Slimline in 150ml cans that can be opened individually; if you choose a 1L bottle for several drinks, follow its instructions for storage after opening.

Does a no-added-sugar mixer remove the risks of an alcoholic drink?

No. Changing the mixer does not remove alcohol from the finished drink. Consider the alcohol and the amount poured separately from the mixer’s sugar declaration.