I'm looking at vimto energy zero, I'm not used to looking at ingredients lists. It says suitable for vegetarian but doesn't confirm on vegan. I'm not sure. This is the ingredients list.

Carbonated Water, Mixed Fruit Juice From Concentrate 3% (Grape, Blackcurrant, Raspberry), Acids (Citric Acid, Malic Acid), Acidity Regulator (Sodium Citrate), Vimto Flavouring (Including Natural Extracts of Fruits, Herbs, Barley Malt and Spices), Colouring Food (Concentrates of Carrot, Hibiscus), Flavouring, Preservatives (Potassium Sorbate, Sodium Benzoate), Natural Caffeine, Sweeteners (Sucralose, Acesulfame K), B Vitamins (Niacin, Biotin, B6, B12), Antioxidant (Ascorbic Acid).