Swizzels Milk Bottles are foam gums that contain glucose syrup, sugar, apple pulp, gelling agent (gelatine), modified starch, flavourings, an acidity regulator (trisodium citrate), and glazing agents (vegetable oil and carnauba wax). Some formulations also include apple pulp preserved with sulphur dioxide/sulphites. While the sweets are milk-flavoured, no dairy ingredients are used, and the flavouring is artificial. The product’s main declared allergens are sulphur dioxide (if present) and gelatine, which makes them unsuitable for vegetarians and vegans. The manufacturer’s general guidance indicates that their products are made in a factory that handles common allergens such as milk, soya, nuts, and peanuts, so cross-contamination is a potential risk for those with severe allergies.