Mountain Dew 320ml is a citrus-flavored carbonated soft drink that contains water, high fructose corn syrup, concentrated orange juice, citric acid, natural flavors, sodium benzoate, caffeine, sodium citrate, erythorbic acid, gum arabic, calcium disodium EDTA, brominated vegetable oil, and yellow 5. It has 110 calories per 320ml can1. Mountain Dew is a popular beverage among gamers and sports enthusiasts who enjoy its sweet and refreshing taste and its energy-boosting effects. It was first introduced in 1940 and is now available in various flavors and variants2.