What’s the Difference Between Diet Coke and Coke Zero?

difference between diet coke and coke zero
Image from coca-cola.co.uk

Are you a soda drinker aware of the health risks associated with sugary beverages but would rather not give up the occasional carbonated drink? Diet Coke and Coke Zero are two drinks that are very similar in taste, so what is the difference between diet coke and coke zero, and which one should you be drinking? 

Two zero-sugar versions of Coca-Cola have entered the market to reduce sugar consumption: Diet Coke and Coke Zero.

Choosing between them can be confusing since they contain no sugar or calories. Both drinks are made with aspartame, an artificial sweetener.

It can be difficult to decide between Diet Coke and Coke Zero when looking for a low-calorie alternative to regular soda.

We will compare both of these beverages in terms of taste, nutritional value, ingredients, calories, and other factors so that you can make an informed choice on which is the best beverage for you.

Coke and Diet Coke are global icons. But linking them together in a single sentence isn’t the only reason for their popularity – they also have great taste! But what sets Diet Coke and Coke Zero apart?

In this article, we look at the difference between diet coke and coke zero.

1. Taste

The first on our list of the main difference between Diet Coke and Coke Zero is probably the taste.

Diet Coke has a sweet aftertaste, whereas Coke Zero favors more of a traditional Coca-Cola flavor. 

2. Sugar Content

The amount of sugar in each drink also differs significantly, with normal Coke containing 39g per can, compared to 0g in Diet Coke and Coke Zero. 

3. Calorie Content

Both Drinks have zero calories. However, normal Coke contains 39 calories per can compared to zero calories in both diet coke and coca-cola zero. 

4. Caffeine Content

Surprisingly, there is more caffeine in regular Coke than in either diet Coke or coke zero, with 34mg compared to the others’ 32 mg each. 

5. Ingredients

Ingredients-wise, Diet Coke includes multiple artificial sweeteners such as aspartame and Ace K, while Coca-Cola Zero has just one additional ingredient – Acesulfame Potassium. 

6. Carbohydrate Levels

Another main difference between diet coke and coke zero is that Normal Coke contains 11 g of carbohydrates per can.

In contrast, Diet and Zero do not contain any carbohydrates because their ingredients don’t contain sugar or carbs, making it suitable for diabetics to consume them without compromising taste or health concerns regarding sugar intake levels. 

7. Artificial Flavor

With regular Coca-Cola, you get an added punch from natural flavors such as cinnamon, nutmeg, coconut, vanillin, and lime oil, which provide a unique depth to the beverage.

In contrast, neither Diet nor Zero contains artificial ingredients –just sparkling water and sweetener(s).  

8. Sodium Content

While Diet Pepsi contains 35mg sodium, Coca-Cola Zero has 20mg per serving, while the original Brown has 55 mg per serving – around one-third less than its diet counterpart.

If you’re watching your sodium intake, you might opt for one over the other, depending on your requirements! 

9. Nutritional Profile

Nutritionally speaking, there really isn’t much difference between diet coke and coke zero.

They both consist mainly of carbonated water and some combination of sweeteners (as mentioned earlier).

Other than that, there are no vitamins or minerals in either variety, so neither would be recommended if looking for health benefits from drinks!   

10. Cost & Availability

This will usually vary from store to store; however, generally speaking, Regional versions may cost more due to higher taxes & transport costs associated with getting it shipped out elsewhere; otherwise, prices should remain reasonably consistent across different locations & shops!


After taking a closer look at the nutritional information and ingredients of Diet Coke and Coke Zero, we can conclude that both are low in calories and sugar with similar flavor profiles.

However, there is a slight difference between diet coke and coke zero. Diet Coke contains four carbohydrate grams per 8 ounces compared to zero for Coke Zero. 

Diet Coke also contains some sodium benzoate to help preserve its taste, whereas Coke Zero does not.

Ultimately the choice between the two comes down to personal preference as either could be part of a healthy diet depending on an individual’s goals.

We are sure that this list of the difference between Diet Coke and coke zero goes a long way in enlightening you!

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