Does Coca-Cola Zero Have Caffeine?

Yes, Coca-Cola Zero Sugar has caffeine in the United States. Although Coke Zero contains no sugar and no calories, the standard version is not caffeine-free. According to Coca-Cola’s U.S. product information, a 12 fl oz can of Coca-Cola Zero Sugar contains 34 mg of caffeine.

That gives Coke Zero roughly the same amount of caffeine as regular Coca-Cola, but considerably less than a typical cup of coffee.

How Much Caffeine Is in Coke Zero? A standard 12 fl oz can of Coca-Cola Zero Sugar contains 34 mg of caffeine.

Here’s approximately how much caffeine you would get from different amounts:

Amounts other than the standard 12 fl oz serving are approximate and can vary by product or packaging.

Coke Zero vs. Regular Coke: Which One Has More Caffeine?

When comparing the caffeine content the quantity is very similar. A 12 fl oz Coca-Cola Zero Sugar contains 34 mg of caffeine, while a 12 fl oz regular Coca-Cola also contains about 34 mg.

So switching from regular Coke to Coke Zero eliminates the sugar and calories, but it doesn’t significantly reduce your caffeine intake.

Here’s a quick comparison:

One big difference is Diet Coke, with a 12 fl oz Diet Coke containing approximately 46 mg of caffeine, making it more caffeinated than either regular Coca-Cola or Coca-Cola Zero Sugar.

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Does Coke Zero Have More Caffeine Than Coffee?

No. Coffee typically contains considerably more caffeine than Coke Zero. An 8 fl oz cup of brewed coffee commonly contains around 80–100 mg of caffeine, although the exact amount can vary substantially depending on the beans, brewing method and serving. Compare that amount with just 34 mg in a 12 fl oz Coke Zero.

That means you would need roughly three standard cans of Coke Zero to reach the caffeine contained in some cups of brewed coffee. And because many Americans drink coffee in servings much larger than 8 fl oz, the difference can be even greater.

And Why Does Coke Zero Contain Caffeine?

Caffeine is a traditional ingredient in many cola beverages and contributes to their overall flavor profile. That’s why you’ll find caffeine in several Coca-Cola products, including regular Coca-Cola, Coca-Cola Zero Sugar and Diet Coke.

However, caffeine isn’t required for a cola beverage, which is why Coca-Cola also makes caffeine-free alternatives.

Is There a Caffeine-Free Coke Zero?

Yes. In the United States, Coca-Cola sells Coca-Cola Zero Sugar Caffeine Free. This product version is designed for people who want the Coke Zero experience without either sugar or caffeine, and making it a great choice for evenings or anyone limiting their caffeine intake.

How Much Coke Zero Is Too Much?

For most healthy adults, the FDA has cited 400 mg of caffeine per day as an amount not generally associated with negative effects. Since one 12 fl oz Coke Zero contains approximately 34 mg of caffeine, you would need to drink roughly 12 cans to reach about 400 mg of caffeine from Coke Zero alone.

Your total daily caffeine intake can also come from coffee, tea, energy drinks, chocolate, medications and other sources, while some people are also much more sensitive to caffeine than others.

And the Answer to the question: Does Coca-Cola Zero Have Caffeine? is:

About the same caffeine as regular Coca-Cola
Less caffeine than Diet Coke
Considerably less than a typical cup of brewed coffee
More than a caffeine-free soda, which contains none