Does Diet Coke Have Caffeine? + Other Common FAQs

Coca-Cola helps satiate your carbonated fix even when on a diet through their Diet Coke line, but you may be wondering what else Diet Coke has to offer.

You may be curious whether Diet Coke contains caffeine to help you stay awake. I looked up the facts, and here is what I found!

Does Diet Coke Have Caffeine?

Diet Coke has varying caffeine content depending on the size of the container, but the standard 12 fluid ounce can of Diet Coke contains 48 milligrams of caffeine. Compared to Coke Zero or Diet Pepsi, Diet Coke contains more caffeine, giving Diet Coke a distinct flavor profile. On the other hand, Diet Coke has less caffeine than a cup of coffee. 

If you want to dive deeper into the caffeine content of Diet Coke, keep reading!

How Much Caffeine Is In Diet Coke?

Depending on the size of the container, Diet Coke’s caffeine content will vary. For a standard 355-ml or 12-ounce can of Diet Coke, there is around 48 milligrams of caffeine.

Similarly, a 7.5-ounce bottle of Diet Coke contains 28 milligrams of caffeine while a 13.2-ounce bottle of Diet Coke has 50 milligrams of caffeine.

Does Diet Coke Contain More Caffeine Than Coffee?

Typically, a regular cup of brewed coffee contains 95 milligrams of caffeine, which is twice the amount of caffeine as a 12-ounce can of Diet Coke.

However, the amount of caffeine that is in a cup of coffee will depend on the coffee beans used and the brewing process.

Does Diet Coke Contain More Caffeine Than Tea?

One regular serving of tea has 47 milligrams of caffeine, which is close to the caffeine content of a standard 12-ounce can of Diet Coke.

Unlike Diet Coke which has a fixed range, you cannot measure exactly how much caffeine tea contains because the caffeine content may vary depending on the leaves used and the brewing process.

Can Diet Coke Keep You Awake?

Diet Coke contains 48 milligrams of caffeine per serving, meaning Diet Coke can keep you awake.

As a substance that doubles as an antioxidant and a stimulant, caffeine can increase alertness, concentration, and give you a brief energy boost.

Which Has More Caffeine Coke Zero Or Diet Coke?

There is no significant difference between Diet Coke and Coke Zero, but Coke Zero contains less caffeine than Diet Coke.

For each 12-ounce serving of Coke Zero, there is 34 milligrams of caffeine while Diet Coke contains 46 milligrams of caffeine.

Why Is There More Caffeine In Diet Coke?

Why Is There More Caffeine In Diet Coke?

Coca-Cola produces Diet Coke with more caffeine content to guarantee Diet Coke’s ‘distinct flavor profile’.

Moreover, every cola-flavored soft drink has kola nuts in the ingredient list, and kola nuts are natural sources of caffeine, making kola nuts a non-negotiable in cola products.

Does Diet Coke Have More Caffeine Than Diet Pepsi?

Diet Coke contains 46 milligrams of caffeine per 12-ounce can. On the other hand, Diet Pepsi has 36 milligrams of caffeine for the same amount.

If you have noticed, Diet Coke tastes a little stronger than Diet Pepsi because of the added caffeine in Diet Coke that aims to provide a unique taste to Coca-Cola products.

Does Coca-Cola Offer Caffeine-Free Diet Coke?

If you do not want caffeine, Coca-Cola has offers a caffeine-free Diet Coke, and the caffeine-free Diet Coke contains no caffeine, sugar, or calories.

Therefore, you can get the flavor and fizziness of Diet Coke without the caffeine, sugar, or calories by getting caffeine-free Diet Coke.

Is Diet Coke Sweetened With Splenda A Caffeine-Free Beverage?

Diet Coke sweetened with Splenda is not a caffeine-free beverage because each 12-ounce of Diet Coke with Splenda contains 46 milligrams of caffeine.

Does Diet Coke Taste Strongly Of Caffeine?

Although Diet Coke contains larger amounts of caffeine compared to other Coca-Cola products, Diet Coke is not overwhelmingly bitter.

However, Diet Coke does have a distinct flavor profile thanks to Diet Coke’s caffeine level, but Diet Coke still tastes similar to regular Coke. Some may say that Diet Coke has a bland flavor profile with strong notes of chemicals rather than caffeine.

Does Diet Coke Contain More Caffeine Than Original Coke?

Each 12-ounce can of the original Coke contains 32 milligrams of caffeine, which means Diet Coke contains about ten more milligrams of caffeine than the original Coke.

How Much Caffeine Is In A 500-ml Bottle Of Diet Coke?

Every 500-ml bottle of Diet Coke contains 64 milligrams of caffeine.

Read our related articles to learn if Coke Zero has caffeine, if Dr. Pepper is a Coke product, and if Coke evaporates.

Conclusion

Diet Coke contains 48 milligrams of caffeine for every 12-ounce serving, and Diet Coke often has more caffeine than other Coca-Cola products.

Diet Coke usually has more caffeine because Coca-Cola aims to emphasize a ‘distinct flavor profile’ in Diet Coke, but Diet Coke still tastes like regular Coke.

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