/ / SCHWEPPES Slimline Tonic Water 1l

SCHWEPPES Slimline Tonic Water 1l

Contains aspartame

This low-calorie tonic water contains quinine and has no sugar. It is sweetened with aspartame and carries a warning about phenylalanine.

Seed-oil freeNo added sugarNo artificial dyesNo artificial flavorsNo synthetic preservativesNo added nitritesNo phosphatesNo gums or thickeners
$28.99 1 L · lowest price at GreatBritishImports
Price and stock checked Nov 1, 2026
Key nutrition facts
2caloriesPer 100 g
Protein
0g
Fiber
—
Added sugar
—
Sodium
40mg
Saturated fat
0g
From Open Food Facts (by barcode)
Ingredients: Carbonated Water, Acid (Citric Acid), Acidity Regulator (Sodium Citrate), Natural Flavourings including Quinine, Sweetener (Aspartame)
On Open Food FactsNutri-Score BTheir grades, for reference; not part of our score. Data: Open Food Facts (ODbL).
71 / 100
Good Scored automatically
Weighted as beveragesHigh confidence · Scored on 9 of 11 inputs, 1 claim verified
Nutrition · counts 35%75
Ingredients · counts 30%84
Processing · counts 10%25
Sourcing · counts 10%70
Transparency · counts 15%70
Why it scores 71
Nutrition 75 · Typical for drinks; no added sugar per 100 g
Ingredients 84 · Aspartame (artificial sweetener, −12); Natural flavours (additive, −4); no dyes
Processing 25 · Formulated tonic water with aspartame and natural flavourings
Sourcing 70 · The seller says food and drinks are sourced in the UK
Transparency 70 · Complete ingredient list and UK sourcing claim; no producer named
Contains aspartame
Phenylalanine warning
Evidence behind the Ingredients deductions
Varies by additive−4 for natural flavours
Mixed evidence−12 for aspartame
Scored Oct 23, 2026 · Scoring guide v3.1 · Updated Oct 20, 2026 · See what changed

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Similar, for lessSame kind of food, scoring about as well or better, for less than $0.86/fl oz here
Real Prime DealsPolar Club Soda, Crisp & Refreshing Sparkling Water, 33.8 fl oz (1 Liter) Bottles
80+9
$2.99 · $0.088/fl oz · 90% less per fl oz
Ingredients
Carbonated Water Acid (Citric Acid) Acidity Regulator (Sodium Citrate) Natural Flavourings including Quinine Sweetener (Aspartame)
5 ingredients
Sourcing

Origin not disclosed on the product page.

Additives3 additives · 1 moderate risk
Aspartame (E951)SweetenerModerate risk
IARC classified it as possibly carcinogenic (Group 2B) in 2023, while JECFA kept its acceptable daily intake.
Natural flavoursFlavouringLimited risk
An undisclosed mix of extracts and carriers; the label doesn’t say what’s in it or how it was made.
Citric acid (E330)AcidNo risk
Usually made by fermentation; considered safe.
Matched from the ingredient list. Risk levels summarise findings from EFSA, the FDA, IARC and published studies; they explain a concern, not a diagnosis.

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