Is Mug Root Beer Gluten-Free?

Is Mug Root Beer Gluten Free

Yes, Mug Root Beer, a super sweet carbonated beverage, is gluten free. They offer several varieties that people who suffer with severe gluten intolerances and celiac disease can consume without contamination. They are:

  • Mug Root Beer (Original)
  • Diet Mug Root Beer
  • Mug Cream Soda
  • Diet Mug Cream Soda

About Mug Root Beer

Started by the Belfast Beverage Company in the early 1940s, Mug Root Beer was once called Belfast Root Beer. The name changed to Mug Old-Fashioned Root Beer in 1947. It was a beloved ingredient to make Brown Cows (Root Beer Floats) or to enjoy on a hot summer day.

It originally comprised only three ingredients: water, sassafras and sugar.


Today PepsiCo owns the brand and, in 2015, began adding Sweetmyx by a company called Senomyx, a bioengineering company. This flavor enhancer is added to increase the sugary taste in drinks and foods. This flavoring is exclusive to PepsiCo and only they have the rights to use the flavor in drinks.

Lack of Regulations & Transparency for Mug Root Beer

There is no law or regulation requiring PepsiCo to disclose their ingredients when under the banner of “natural and artificial flavors.” What’s more, there is no literature by the FDA about Sweetmyx, what it is or whether it has the organization’s approval or not.

Ingredients in Mug Root Beer

While the following ingredients are gluten free, there’s no way to know what the company means by “natural and artificial flavors.” It’s advisable for consumers to make an informed decision under their best judgment through additional research.

  • Mug Root Beer (Original): carbonated water, high fructose corn syrup, natural and artificial flavors, caramel color, sodium benzoate, calcium disodium EDTA, citric acid, modified food starch, quillaia extract
  • Diet Mug Root Beer: carbonated water, caramel color, sodium benzoate, aspartame, citric acid, natural and artificial flavors, modified food starch, calcium disodium EDTA, quillaia extract.
  • Mug Cream Soda: carbonated water, high fructose corn syrup and/or sugar, natural and artificial flavors, sodium benzoate, citric acid and caramel color.
  • Diet Mug Cream Soda: carbonated water, high fructose corn syrup, natural and artificial flavor, sodium benzoate, citric acid, caramel color, calcium disodium EDTA.

Nutritional Information in Mug Root Beer

Soft drinks are usually very high in sugar and not recommended as part of your daily diet. Mug Root Beer is not a significant source of the required daily vitamin, mineral and nutritional intake. 

Mug Root Beer (Original)

Root Beer Diet Mug

Mug Cream Soda

Diet Mug Cream Soda

Calories 100 0 120 290  
Carbs  29g 0g 32g 79g  
Total Fat   0g   0g   0g   0g  
Saturated Fat 0g   0g   0g   0g  
Trans Fat 0g   0g   0g   0g  
Cholesterol 0mg   0mg   0mg   0mg  
Sodium  45mg 45mg 45mg 105 mg  
Dietary Fiber 0g   0g   0g   0g  
Total Sugars  28g 12g 32g   79g  
Protein   0g   0g   0g   0g  
Vitamin D   0mcg   0mcg   0mcg   0mcg  
Calcium 0mcg   0mcg   0mcg   0mcg  
Iron   0mg   0mg   0mg   0mg  
Potassium   0mg   0mg   0mg   0mg  
Vitamin A    0mcg   0mcg   0mcg   0mcg  
Vitamin C  0mg   0mg   0mg   0mg  


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