Soda
Caffeine in Barq's Root Beer
22mg
per 12 oz
6% of FDA daily max
Is that a lot?
Barq's Root Beer is 6% of the FDA’s recommended daily maximum, in a single 12 oz.
Barq's Root Beer
Green tea
Espresso
Red Bull
Coffee
FDA daily max · 400mg
Before bed
When can I drink Barq's Root Beer and still sleep?
Your Barq's Root Beer cutoff
You drink it at
Bedtime
Barq's Root Beer · 22 mg · assuming an average ~5 h half-life
At bedtime
7 mg
close to optimal
Latest safe Barq's Root Beer: 11:00 PM
How much caffeine is in Barq's Root Beer?
Barq's is one of the rare caffeinated root beers, carrying about 22 mg per 12 oz can, while the diet version has none. That gentle kick comes with a sweet 45 grams of sugar.
| Serving | Caffeine | Sugar |
|---|---|---|
| 12 oz | 22 mg | 45 g |
One of the few caffeinated root beers; diet Barq's is caffeine-free.
Will Barq's Root Beer affect your sleep?
At 22 mg, regular Barq's sits well under the 50 mg threshold and clears quickly, so it has little effect on sleep. If you want a truly caffeine-free root beer at night, the diet Barq's has none.
Source: Manufacturer label