Is flame retardant in Mountain Dew?

No, Mountain Dew does not contain flame retardant. However, there has been concern about certain ingredients in some soft drinks, such as brominated vegetable oil (BVO), which has been used as an emulsifier and can be found in some citrus-flavored beverages. BVO is related to certain flame retardants but is generally regarded as safe in limited amounts by food safety authorities. It's always best to check the ingredient label for the most accurate information.