Which mixer preference sounds like yours?

Avoiding added sugars and sweeteners

You want an unsweetened mixer, not simply a drink with 0g sugars. Check the ingredients on the pack as well as its front label.

Choosing zero-sugar tonic with sweeteners

You want tonic with 0g sugars and are comfortable with sweeteners. Tesco Low Calorie Indian Tonic Water and Schweppes Slimline use different sweeteners, so the ingredient list still matters.

Preferring a light botanical tonic

You are considering a botanical-style tonic and accept some sugar. Fever-Tree Refreshingly Light lists fructose; Fentimans Naturally Light lists sugar.

What should you check before choosing?

An unsweetened mixer

Choose when: You want to avoid both added sugars and sweetening ingredients.

Trade-off: A zero-sugar or slimline tonic does not necessarily meet that personal requirement.

Zero-sugar tonic

Choose when: You want tonic with 0g sugars and accept non-sugar sweeteners.

Trade-off: Sweetener ingredients and pack warnings vary between products and formats.

Light botanical tonic

Choose when: You want a botanical-style tonic and some sugar is acceptable.

Trade-off: The named Fever-Tree and Fentimans light tonics contain fructose or sugar.

Priority What to check Your needs
Label meaning Read the ingredients alongside the sugars value per 100ml. UK no-added-sugar claim rules address added sugars and foods used for sweetening; the claim alone does not tell you whether a drink contains non-sugar sweeteners. I want to know whether the mixer meets my own ingredients requirement, rather than relying on the words ‘light’ or ‘zero sugar’.
Sweetener choice Tesco lists acesulfame K and sucralose. Tesco Groceries lists aspartame and acesulfame K for Schweppes Slimline 1L, but aspartame for the 12 × 150ml cans; check the format you are buying. A tonic with 0g sugars could work for me, provided I am happy with its particular sweeteners and any pack warning.
Sugar in light tonic Fever-Tree lists fructose in Refreshingly Light Indian Tonic Water. Fentimans lists sugar and 3.4g sugars per 100ml in Naturally Light Tonic Water. I would consider a light botanical tonic if some sugar fits what I want for the serve.
Serving format Check the pack size, serving size and after-opening instructions. Schweppes Slimline is listed in 12 × 150ml cans as well as a 1L bottle. Individual cans would suit separate pours; for a larger bottle, I would check how to store it once opened.

Which label mistakes are easy to make?

  • Assuming ‘zero sugar’ means no sweeteners

    Tesco Low Calorie Indian Tonic Water and Schweppes Slimline have 0g sugars in the cited listings but contain non-sugar sweeteners. A zero-sugar value does not settle a preference for an unsweetened drink.

    If avoiding sweetening ingredients is important to you, inspect the current ingredients list rather than relying on the sugars figure alone.

  • Reading ‘light’ as sugar-free

    Fever-Tree Refreshingly Light contains fructose, while Fentimans Naturally Light contains sugar. Their light positioning does not make either a sugar-free choice.

    Compare the ingredients and sugars per 100ml with what you want in your movie-night serve.

  • Assuming every slimline tonic uses the same sweetener

    The Tesco Groceries listing for Schweppes Slimline 1L names aspartame and carries a phenylalanine warning. Sweetener details can differ by format.

    If you need to avoid a particular ingredient, read the warning and ingredients on the exact pack before choosing it.

What do the named tonic ranges offer?

Tesco

Tesco Low Calorie Indian Tonic Water is listed in a 1L bottle.

  • Its Tesco Groceries listing states 0g sugars.
  • It contains acesulfame K and sucralose, so it does not suit a preference to avoid sweeteners.

Schweppes

Schweppes Slimline Tonic is listed in 1L bottles and 12 × 150ml cans.

  • Tesco Groceries lists 0g sugars for the canned tonic.
  • The listings name aspartame; the 1L listing also names acesulfame K and carries a phenylalanine warning.

Fever-Tree

Refreshingly Light Indian Tonic Water is a light tonic containing fructose.

  • Fever-Tree describes it as having 50% fewer calories than its regular Indian Tonic Water.
  • Its listed fructose makes it unsuitable if you are avoiding added sugars.

Fentimans

Naturally Light Tonic Water is a light tonic for shoppers who accept some sugar.

  • Fentimans lists its sugars value as 3.4g per 100ml, making the amount clear for comparison.
  • The ingredients include sugar; ‘Naturally Light’ does not mean sugar-free.

Britvic / London Essence

Britvic described London Essence as a light mixer range in a 2016 announcement.

  • That announcement described the range as under 20kcal and under 4g sugar per 100ml at the time.
  • For a particular London Essence mixer today, use its own current ingredients and nutrition panel rather than the historical range description.

A Joybuy option for zero-sugar tonic

This canned tonic is an option for movie-night serves when 0g sugars matters and you accept sweeteners; it is not an unsweetened mixer.

Schweppes Slimline Tonic Water, 12 × 150ml cans

Schweppes Slimline Tonic Water, 12 × 150ml cans

The individual cans suit separate movie-night pours if you want tonic with 0g sugars and accept sweeteners.

The listing states 0g sugars and 2kcal per 100ml and names aspartame. Check the current pack ingredients and phenylalanine warning if either matters to you.

View on Joybuy

Movie-night mixer questions

Does ‘no added sugar’ mean the same as ‘zero sugar’?

No. A zero-sugar value describes the drink’s sugar content, while the UK no-added-sugar claim condition addresses added sugars and other foods used for sweetening, as set out by legislation.gov.uk. Neither phrase alone tells you whether non-sugar sweeteners are present, so check the ingredients if you want to avoid them too.

Which tonic can I consider if I accept sweeteners but want 0g sugars?

Tesco Low Calorie Indian Tonic Water and Schweppes Slimline Tonic are listed with 0g sugars. Tesco lists acesulfame K and sucralose; the listed Schweppes formats contain aspartame, with acesulfame K also named for the 1L bottle. Choose by format and ingredients, and check the current pack.

Are Fever-Tree Refreshingly Light and Fentimans Naturally Light sugar-free?

No. Fever-Tree lists fructose in Refreshingly Light Indian Tonic Water, and Fentimans lists sugar and 3.4g sugars per 100ml in Naturally Light Tonic Water. Consider them only if some sugar fits your choice.

What should I do with a mixer after opening it?

Follow the storage instructions on that product’s pack. For a bottle you plan to use across several serves, check its refrigeration and after-opening directions before buying.