Diet Mtn Dew contains carbonated water, concentrated orange juice, citric acid, natural flavors, citrus pectin, potassium benzoate, aspartame, potassium citrate, caffeine, sodium citrate, acesulfame potassium, sucralose, gum arabic, sodium benzoate, calcium disodium EDTA, brominated vegetable oil and tartrazine. All ingredients are approved by the Food and Drug Administration.
Each ingredient is added for specific reasons. Concentrated orange juice, citric acid, natural flavors and citrus pectin are added to create the distinctive taste of the drink. Carbonated water, which is water containing carbon dioxide, makes the drink effervescent. Potassium benzoate and sodium benzoate preserve freshness. Aspartame, acesulfame potassium and sucralose are artificial, calorie-free sweeteners that are hundreds of times sweeter than normal table sugar, or sucrose, so that only small amounts are needed to sweeten a soft drink.
Caffeine is a stimulant usually found in coffee plant. Gum arabic is a natural gum made of hardened sap from the acacia tree. It is commonly used in the food industry as a preservative and stabilizer.
Calcium disodium EDTA is an abbreviation for calcium disodium ethylene diamine tetra acetic acid. It is also commonly used as a preservative and stabilizer. Brominated vegetable oil is a stabilizer commonly used to dissolve and keep flavoring oils evenly distributed. Tartrazine, also known as yellow no. 5, is a food dye.