Written by Rachael Link, MS, RD ~ above October 10, 2019 — medically reviewed through Adda Bjarnadottir, MS, RDN (Ice)

Root beer is a rich and also creamy soft drink typically consumed throughout phibìc America.

You are watching: Does beer have caffeine in it

While most human being know that various other varieties that soda often contain caffeine, many are unsure about the caffeine contents of source beer.

This deserve to be specifically problematic if she trying to limit her intake of caffeine or eliminate it from your diet.

This short article investigates whether there is caffeine in root beer and provides some basic ways to check.

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In general, many brands of root beer offered in north America room caffeine-free.

Although the ingredients can vary based on the particular brand and product, most types of this renowned beverage save on computer carbonated water, sugar, food coloring, and also artificial flavors.

However, very couple of brands contain included caffeine.

Here room a couple of popular brand of source beer that don’t contain caffeine:

A&W root BeerDiet A&W source BeerMug root BeerDiet Mug source BeerDad’s source BeerDiet Dad’s source BeerBarq’s Diet source BeerSummary

Most well-known brands of source beer marketed in north America space caffeine-free.

Some species may save caffeine

Although root beer is generally caffeine-free, some varieties may contain a little amount.

In particular, the brand Barq’s is notable for the caffeine content.

The regular variety contains approximately 22 mg in every 12-ounce (355-ml) can. However, the diet version contains none (1).

For reference, a common 8-ounce (240-ml) cup that coffee contains around 96 mg the caffeine, i beg your pardon is around 4 time the lot in a can of Barq’s (2).

Other caffeinated beverages, such as environment-friendly or black tea, room also higher in caffeine, regularly containing 28–48 mg every cup (240 ml) (3, 4).


Some specific brands might contain caffeine. For example, regular Barq’s root beer consists of 22 mg in every 12-ounce (355-ml) serving.

How to inspect for caffeine

Foods that contain caffeine naturally, such as coffee, tea, and chocolate, may not perform it directly on the brand (5).

However, foods items that contain included caffeine, including specific varieties of source beer, are compelled to perform it ~ above the ingredient label.

Keep in mind the the Food and also Drug administration (FDA) go not need manufacturers come disclose the precise amount of added caffeine in food assets (6).

Therefore, the best way to determine specifically how lot a details product contains is to check the product’s website or reach the end to the manufacturer directly.


Foods and also beverages with added caffeine are forced to list it ~ above the ingredient label. To identify the precise amount a product has, examine the brand’s website or reach out to the manufacturer.

The bottom line

Most ranges of source beer sold in north America room caffeine-free.

However, details brands, such as Barq’s, may contain a tiny amount of added caffeine in every serving.

See more: What Is 148 Cm To Inches And Feet And Inches, Convert 148 Centimeters To Feet And Inches

If she trying to minimize your caffeine input or cut it out completely, be certain to inspect the ingredient label of your beverages very closely to recognize if castle contain included caffeine.

last medically the evaluation on October 10, 2019


Written by Rachael Link, MS, RD top top October 10, 2019 — median reviewed by Adda Bjarnadottir, MS, RDN (Ice)

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