This product is likely Chestnut Free.
Carbonated water, contains 2% or less of: natural flavors, lemon juice concentrate, citric acid, green tea extract, potassium benzoate (to ensure freshness), ester gum, gum arabic, sucralose, beta carotene (for color), calcium disodium edta (to protect flavor), niacinamide (vitamin b3), retinol (vitamin a), calcium pantothenate (vitamin b5), cholecalciferol (vitamin d3), biotin, cyanocobalamin (vitamin b12), pyridoxine hydrochloride (vitamin b6).
Contains: does not contain any of the 9 major allergens