Who are these drinks for?

Hosts serving tonic-based drinks

If guests are making their own drinks, decide whether individual 150ml cans or a shared 1-litre bottle better suits the number of pours and the choice of mixer-to-spirit ratios.

Hosts with a strict no-added-sugar brief

Check the ingredient list as well as the front-of-pack wording. SPAR labels its Low Calorie Indian Tonic no added sugar; Fever-Tree Refreshingly Light lists fructose, and Fentimans Naturally Light lists sugar.

Hosts including non-drinkers

A ready-to-pour option avoids making every guest’s drink with a spirit mixer. Tesco lists Belvoir Farm’s non-alcoholic Lime & Yuzu Mojito as no added sugar, while its nutrition panel lists 5.7g sugars per 100ml.

What should you check before buying?

Choose the type of drink first, then check its sugar wording, ingredients and pack size against the way you plan to serve it.

Priority What to check Your needs
Sugar claim Read the stated claim and ingredients together. SPAR labels its tonic no added sugar; Fever-Tree Refreshingly Light lists fructose, and Fentimans Naturally Light lists sugar. “Light” alone will not answer my question if the party brief excludes added sugar.
Total sugars Compare the nutrition panels on the same per-100ml basis. Tesco lists 5.7g sugars per 100ml for its no-added-sugar Belvoir Lime & Yuzu Mojito; the Joybuy description for Schweppes Slimline cans lists 0g per 100ml. I want an alcohol-free choice, but I also need to know whether no added sugar means the drink contains no sugar at all.
Sweeteners Check each pack’s ingredients and warnings. Schweppes Slimline cans list aspartame and a source of phenylalanine; SPAR’s tonic lists aspartame and sodium saccharin. Sainsbury’s Diet Indian Tonic lists acesulfame K and sucralose. If a guest needs to avoid a particular sweetener, I need to be able to identify it before serving the drink.
Serving format Count planned pours against pack size: Schweppes Slimline comes in 12 × 150ml cans, SPAR’s tonic in a 1-litre bottle, and Belvoir’s non-alcoholic drink in a 750ml bottle. Will guests take individual tonic portions, pour from a shared bottle or want a ready-made alcohol-free drink?
Opened bottles Follow the instructions on the particular pack. Sainsbury’s says to refrigerate its Diet Indian Tonic after opening and use it within three days. If I open a bottle for only a few drinks, I want to know how to store what remains.

What could trip up the drinks plan?

  • Treating “light” as a no-added-sugar claim

    Fever-Tree Refreshingly Light lists fructose, and Fentimans Naturally Light lists sugar. Their names do not establish that they meet a strict no-added-sugar brief.

    Read the ingredients alongside the claim before putting either on a no-added-sugar drinks table.

  • Assuming no added sugar means no sugar

    Tesco labels Belvoir Lime & Yuzu Mojito no added sugar, but its nutrition panel lists 5.7g sugars per 100ml.

    If total sugar matters to a guest, compare the per-100ml nutrition values as well as the front label.

  • Overlooking sweeteners

    The tonic recipes differ: Schweppes Slimline cans list aspartame and a source of phenylalanine, while Sainsbury’s Diet Indian Tonic lists acesulfame K and sucralose.

    Keep the packaging available for guests to inspect and check ingredients before buying for anyone avoiding a specified sweetener.

  • Choosing a pack size without a serving plan

    A 150ml can provides one individual portion; a 1-litre bottle allows guests to pour different amounts from the same pack.

    Estimate how many tonic drinks you intend to serve, and decide whether individual cans, a shared bottle or both fit the setup.

Which brands and ranges are relevant?

These examples illustrate different label claims and formats; check the particular product rather than treating a brand name as a sugar claim.

Schweppes

Slimline tonic is a classic-style option available in the listed 1-litre bottle and 12 × 150ml can formats.

  • Sainsbury’s labels its Slimline 1-litre tonic “No sugar” and lists less than 0.1g sugars per 100ml.
  • Joybuy’s Slimline can listing includes aspartame and a source of phenylalanine; check the pack if these matter to a guest.

Fever-Tree

Refreshingly Light Indian Tonic is a lighter-labelled tonic, not a substitute for an explicit no-added-sugar claim.

  • Fever-Tree lists fructose, described as fruit sugar, among its ingredients.

Fentimans

Naturally Light Tonic Water is another lighter-labelled tonic to assess by its ingredients and nutrition panel.

  • Fentimans lists sugar as an ingredient and 3.4g sugar per 100ml, so this product does not meet a strict no-added-sugar brief.

Britvic

Britvic described classic and zero-sugar variants of its 330ml Indian Tonic Water cans in a September 2023 announcement.

  • For a current purchase, check the particular can’s label, ingredients and availability.

Sainsbury’s

Its Diet Indian Tonic Water is a listed 1-litre, low-calorie tonic with sweeteners.

  • Sainsbury’s lists acesulfame K and sucralose in this product’s ingredients rather than aspartame.
  • The listing describes it as low calorie rather than explicitly no added sugar; check the pack if that exact claim is required.

Joybuy tonic for individual serves

This 12-can Schweppes Slimline pack is an option for serving individual tonic portions at a Halloween party.

Schweppes Slimline Tonic Water, pack of twelve 150ml cans

Schweppes Slimline Tonic Water 12 × 150ml

Individual cans suit a self-serve tonic station where guests take one portion at a time. Joybuy’s product description lists 0g sugars per 100ml and aspartame; it also notes a source of phenylalanine. Check the pack information if a guest needs to avoid either.

View on Joybuy

Questions about no-added-sugar mixers

Does “light” tonic mean no added sugar?

No. Fever-Tree Refreshingly Light lists fructose, and Fentimans Naturally Light lists sugar. Check the ingredient list rather than relying on “light” in the product name.

Is no added sugar the same as sugar-free?

No. Tesco labels Belvoir Lime & Yuzu Mojito no added sugar, while its nutrition panel lists 5.7g sugars per 100ml. Compare the nutrition panel if total sugar matters for your drinks table.

What works for individual tonic servings?

Schweppes Slimline is listed on Joybuy as a pack of twelve 150ml cans, so guests can take separate tonic portions. Its listed ingredients include aspartame, and the product information notes a source of phenylalanine.

Do no-added-sugar tonics contain sweeteners?

The explicitly no-added-sugar SPAR Low Calorie Indian Tonic lists aspartame and sodium saccharin. Sweeteners differ between products, so check the current ingredient panel if a guest avoids a particular one.

What should I do with an opened tonic bottle?

Follow that bottle’s storage instructions. Sainsbury’s says to refrigerate its Diet Indian Tonic after opening and use it within three days; check other products’ packs for their own directions.