Diet Pepsi is a great tasting, refreshing, sugar free cola perfect for meal times and enjoyable everyday moments. Best served chilled or over ice for maximum refreshment. Thirsty for More? Why not try our great tasting Pepsi MAX flavoured cola Suitable for vegetarians Ingredients Carbonated Water, Colour (E150d), Acids (Phosphoric Acid, Citric Acid), Flavourings (Including Caffeine), Sweeteners (Aspartame, Acesulfame K), Acidity Regulator (Sodium Citrate), Preservative (Potassium Sorbate)