Does Coke Zero Have Caffeine? The Surprising Answer Revealed! (2023)

It’s a question we’ve all asked: does Coke Zero have caffeine? If yes, then how much caffeine? After all, what’s the point of opting for a caffeine-free coca cola if you’re not getting the hit of energy that usually comes with your regular caffeinated sodas?

While common sense might tell you that since this is a zero-calorie beverage, it must be caffeine-free coca cola. With cocaine-laced soft drinks being all the rage these days, you never know what might be lurking in that tall glass of ‘zero-sugar’ fizz!

Let’s go ahead and dive into the details to find out if diet coke is caffeine-free coca cola or not!

Key Takeaway

Table of Contents

Yes, Coke Zero does contain caffeine and is not caffeine free! The amount of caffeine in diet coke is 34 mg per 12 oz can, which is approximately the same amount of caffeine as found in other regular sodas.

What is Coke Zero?

Coke Zero is a popular soda beverage distributed by the Coca-Cola Company. It was designed to taste similar to Coke, with the same carbonation and flavorings, but without the added sugar and calories. Instead of sugar, Coca-Cola uses a combination of artificial sweeteners such as ace-K, aspartame, and sucralose to give it its distinct sweet taste. Many people think of it as a healthier alternative to traditional colas.

The debate surrounding Coke Zero has been controversial due to the sweeteners used and people’s concerns over potential health risks. On the one hand, it is argued that health risks associated with long-term artificial sweetener use have not been fully recognized or studied yet.

Similarly, low-calorie alternatives are often seen as being far less healthy than their full-calorie counterparts; some medical professionals believe that there are potential links between these drinks and obesity. On the other hand, those who regularly drink diet coke point out that it helps them regulate their sweets intake, as well as possibly aiding in weight management and diabetes prevention.

Now that we’ve looked at what Coke Zero is, let’s move on to examining its nutritional facts in more detail in our next section.

  • The American Academy of Pediatrics states that for children and adolescents, an intake of less than 100 mg of caffeine per day is safe.

  • Caffeine is a stimulant which can cause restlessness, irritability, insomnia and, in rare cases, rapid heartbeats if consumed in large amounts.

Must-Know Points

Diet coke is a low-calorie and sugar-free soda produced by the Coca-Cola Company that has generated both support and controversy due to its use of artificial sweeteners. While it is thought to be a healthier alternative, there is debate surrounding potential health risks associated with artificial sweetener consumption. The next instalment will delve further into its nutritional facts.

Coke Zero Nutritional Facts

Nutritional facts surrounding Coca-Cola Zero sugar are an important part of understanding the beverage’s ability to provide or disrupt everyday nutrition goals. The full nutritional fact label for Coca-Cola Zero Sugar is available on the can, but it is an 8 oz can that contains:

  • Less than 1 calorie

  • 0 grams of fat

  • 0 mg of sodium

  • 0 grams of carbohydrates and protein each

  • 39 mg of caffeine per serving

Does Coke Zero Have Caffeine? The Surprising Answer Revealed! (1)

Little is known about any other trace ingredients in Coke Zero, such as preservatives like potassium citrate or flavorings as these have not been released by Coca-Cola Corporation yet. The debate over what constitutes a “serving” has been ongoing since Coke was first introduced in 1886. While some argue that one “serving” should be 4 ounces or less, others argue that 8 ounces or more is the proper serving size.

Though there are many critics who point to soda in general as being bad for you, the fact remains that when it comes to calories and caffeine content, Coke Zero has very little of both. Compared to the original coca cola, which has a high concentration of sugar and calories (100 calories per 12 oz can), Coke Zero has virtually no added sugar or calories.

However, it still provides consumers with a carbonated beverage they enjoy while avoiding most of the unhealthy aspects of drinking soda regularly. This makes it an attractive option for those looking to cut back on their overall calorie intake without sacrificing flavor.

Coke Zero is a Low-Calorie Drink

Nutritional facts regarding the caffeine content in Coke Zero reveal why it is increasingly popular among students and those seeking a pick-me-up during long days at work. Unsurprisingly, this low-calorie beverage contains caffeine — 39mg per 8oz can — which means it won’t satisfy those who need more of a boost from their caffeinated drinks.

However, it does offer some extra energy throughout the day for those who prefer lighter options like coffee or tea. Above all else, nutritional value largely varies depending on the person’s individual dietary choices and needs; it is up to the consumer to decide if Coke Zero fits within their dietary lifestyle or not.

Calories and Caffeine Content

Coke Zero and regular Coca-Cola contain different amounts of calories and caffeine. Regular Coca-Cola has 140 calories, while your not-so-caffeine-free diet coke has zero calories. Meanwhile, both beverages contain the same amount of caffeine, at about 34 mg per 12-ounce bottle or can.

There is a debate over whether these differences have an impact on taste or health benefits. Some argue that having a zero-calorie beverage is preferable to one with sugar and calories, suggesting that it may be better for long-term health. They also suggest that a person consuming this beverage will not receive the same “buzz” from regular soda due to the difference in carbohydrates.

Others suggest that these differences are negligible, and the taste is virtually indistinguishable between the two drinks. They point out that even if a person does have the preference for fewer calories and less caffeine or caffeine-free coke, they still receive the same basic sensory experience as though they were drinking regular Coke.

In short, Coke Zero and regular Coca-Cola contain similar levels of caffeine but differ significantly in terms of calories. There are valid arguments on both sides concerning which is a healthier choice and how much of an impact those factors have on taste.

But ultimately, it comes down to personal preference and individual decisions regarding dietary guidelines. Moving forward, how do these two beverages stack up against one another when it comes to taste? That is what we’ll examine in the next section…

The Taste Test & Comparisons

When comparing the taste of Coca-cola Zero sugar to regular Coke, the debate is still strong. Some insist that they are exactly the same, while other can detect subtle differences in flavor. To determine whether there is a difference between flavor, most people conduct a taste test.

In tasting both drinks side by side, some people point to slightly different levels of sweetness or a slight difference in flavor between the two drinks. They may discuss how the taste of regular Coke has an increased syrupy quality to it than its sugar-free beverage counterpart.

On the flip side, there are some who maintain that Coca-Cola offers only one signature flavor and that no matter which beverage you drink, it should taste essentially identical. There are those who even post videos of their own taste test experiments where they mix both beverages together in order to truly discover if there is any sort of difference in flavor; this serves could be seen as an ultimate “proof” of variety between the drinks.

As debates regarding the flavor differences between these two drinks will likely continue to rage on, we can move on to the next section to see what else separates diet coke from its original sugary version: Comparing Coke Zero to Regular Coke.

Comparing Coke Zero to Diet Coke and Regular Coke

Does Coke Zero Have Caffeine? The Surprising Answer Revealed! (2)

When comparing coca-cola zero sugar to Regular Coke, there are several things to consider. Commonly, the primary factor affecting a person’s decision about which soda to drink is taste. Many people agree that the taste of Regular Coke is superior due to the presence of added sugar in the mixture along with its signature caramel coloring.

On the other hand, Coke Zero does not contain sugar or caramel coloring and has a more subtle flavor. In this regard, coca-cola zero sugar may be more suited for those who prefer a lighter/protective taste from their sips.

The caffeine content is another distinguishing factor between Regular Coke and Coke Zero. Like many sodas, Regular Coke contains caffeine; however, at 34 milligrams per 12 ounces (according to the USDA), it only contains a marginal amount compared to other caffeinated beverages such as energy drinks and certain teas and coffees.

In terms of caloric content, Regular Coke contains 39 grams of carbohydrates, while coke zero sugar is completely calorie-free due to its lack of added carbs and sugars. This makes it a highly desirable option for those observing close dietary restrictions such as a low-carb diet or calorie count.

Last but not least, when looking into potential health risks associated with soda consumption in general, both Regular Coke and Coca-Cola Zero share similar complexities since both ultimately contain artificial sweeteners for flavoring purposes despite having different formulas.

As such, individuals should keep moderation in mind when consuming either product in order to prevent any potential unwanted side effects brought about by excessive amounts of sugar substitutes or acidic ingredients.

With that in mind, now let’s investigate further and evaluate the nutritional comparison of other sodas on the market today.

Nutritional Comparison of Other Sodas

When comparing coca-cola zero sugar to other similar sodas, it is important to understand the overall nutritional value of different drinks. Diet sodas generally contain little or no sugar and calories but may contain added artificial sweeteners. It is useful to compare the nutritional information of different types of soda to assess their health benefits and decide which one might be better for you.

Coke Zero contains 0 calories and 0 grams of sugar per 12-ounce serving. Additionally, it does not contain any aspartame, saccharin, acesulfame potassium, or high fructose corn syrup. This makes Coca-Cola Zero sugar one of the healthiest diet sodas available on the market. However, while these drinks contain 0 calories, they also typically provide less energy-boosting caffeine than regular sodas.

On the other hand, soda drinks with higher amounts of sugar can provide more energy in a form that can be used immediately by your body. Regular cola contains 39 grams (156 calories) of sugar per 12 ounces and more caffeine (34 milligrams) than Coke Zero.

Different brands of sprite and dr pepper have around 65-68 grams (272–276) of sugar per 12 ounces and 45 milligrams of caffeine. While these drinks may provide more energy immediately from the sugar content, they are much less healthy as they can harm your cholesterol levels and increase your risk for diabetes.

Personal Choices

Overall, when choosing between a sugary soda or a diet soda, it comes down to personal preference and whether you want a drink with fewer negative health effects or more immediate energy-boosting benefits. Nonetheless, it is important to note that both types of drinks should still be consumed in moderation as part of an overall balanced lifestyle due to their high sugar and caffeine content.

Ultimately, knowing what’s in Coke Zero can help you make an informed decision if it is right for you. The next section will focus on artificial sweeteners and their potential health risks so you can weigh all the pros and cons before making a decision.

If you prefer drinking Fanta, you should know the answer to does Fanta have caffeine?

Frequently Asked Questions

What ingredients are used in Coke Zero Sugar?

Coke Zero is made with carbonated water, caramel color, phosphoric acid, aspartame (AminoSweet), potassium benzoate, natural flavors, and potassium citrate. All of these ingredients come together to make a beverage that has the classic Coke taste but has no sugar or calories. Aspartame is an artificial sweetener often used in diet drinks, and it is the primary sweetener in coke zero sugar.

How much caffeine is in a can of Coca Cola Zero?

Coke Zero contains approximately 34 mg of caffeine per 12-ounce can. Although it is not caffeine free, the amount is significantly lower than other caffeinated sodas, such as regular Coke or Pepsi, which typically contain around 35 mg per 12-ounce can. The lower caffeine content of Coca-Cola Zero makes it an attractive alternative for those who want to reduce their caffeine intake but still enjoy a cold, refreshing soda occasionally.

What are the benefits of drinking Coke Zero?

There are a few benefits to drinking zero-calorie cola. The first is that it contains no sugar or calories. This makes it an ideal drink choice for people who are looking to reduce or avoid added sugars in their diet. Additionally, Coke Zero does have caffeine which can help keep energy levels up and potentially improve focus. Finally, the taste is similar to regular Coca Cola but with fewer calories, which makes it an excellent choice for those who have tried multiple zero-calorie alternatives hoping to find the one that helps limit their calorie intake.

Are there any side effects of consuming Coke Zero?

Yes, consuming Coke Zero can have side effects. Firstly, this so-called coke without sugar contains artificial sweeteners such as aspartame and acesulfame potassium, which have been linked to health issues such as headaches, dizziness and potential neurological issues. Secondly, Coke Zero also contains phosphoric acid, which can lead to an upset stomach and indigestion, and it can also increase the risk of developing kidney stones. So, if you want to stay away from artificial sweeteners like aspartame and acesulfame potassium, you would have to keep diet coke away from you completely.

Additionally, high levels of caffeine can interfere with sleep patterns and cause other symptoms such as jitters and nausea. Finally, consuming sugary drinks like Coke Zero on a regular basis can contribute to weight gain if the drink is not replacing fluids lost by sweating or eating calorie-rich foods.

Are there any health risks associated with consuming Coke Zero?

Yes, there are certain health risks associated with consuming Coca-Cola Zero. Though it does not contain sugar and calories, coke zero sugar is still a carbonated beverage high in caffeine. Too much caffeine can cause anxiety, jitteriness, restlessness, irregular heartbeat, and sleeplessness.

Additionally, Coca-Cola Zero, like diet coke and other soft drinks, contains phosphoric acid, which has been linked to nutritional deficiencies and osteoporosis. Therefore it is important to be mindful of how much Coke Zero you are consuming and keep your consumption within moderation.

Does Coke Zero Have Caffeine? The Surprising Answer Revealed! (3)


While diet coke does contain a form of caffeine known as Erythritol, this form of the substance is not as potent or potentially harmful as regular caffeine found in other beverages.
It is worth noting that Coke Zero contains about one-third the amount of caffeine found in regular Coca-Cola, and according to studies conducted on consumers who drank the beverage, it does not provide the same stimulation and alertness that regular caffeinated drinks do. Some people have also reported feeling minor adverse effects when drinking coke with zero sugar, including headaches and jitters.

Still, depending on an individual’s tolerance for caffeine and other health-related factors, they should be aware of the potential effects that consuming soda can have on their body. It should also be noted that even though Coke Zero is lower in calories than regular soda, it still contains sugar substitutes like Aspartame which have been linked to some possible negative health outcomes, including increased risk of cancer and neurological problems.

Overall, when consumed in moderation, it appears that Coke Zero can provide an enjoyable refreshment without undesired side effects for most people. It remains an individual choice to make when deciding if drinking soda – with or without added caffeine – is good for them or not.


Does Coke Zero have any caffeine in it? ›

Coca-Cola® Zero Sugar Caffeine Free | Coca-Cola® Enjoy the crisp and refreshing taste of Coca-Cola with no caffeine and no sugar.

What is the difference between Coke Zero and Coke Zero caffeine free? ›

Coca-Cola Zero Sugar is a super sweet soft drink that has 34 mg of caffeine per every 355 ml shelf-stable can. Coke Zero Sugar Caffeine-Free options have no caffeine.

How bad is Coke no sugar no caffeine? ›

Coke Zero is sugar-free. However, the sugar substitutes it contains may not necessarily be a healthier option for people looking to reduce their risk of diabetes. A 14-year study in 66,118 women observed an association between drinking artificially sweetened beverages and an increased risk of type 2 diabetes ( 15 ).

How much caffeine is in a bottle of Coke Zero? ›

It depends on the drink.
Coca‑Cola ClassicCoca-Cola Zero SugarCoca-Cola Light

What soda has no caffeine? ›

Sprite and Fresca soda are also caffeine-free. Enjoy these popular caffeine-free drinks: Caffeine-Free Coca‑Cola, Caffeine-Free Diet Coke and Caffeine-Free Coca‑Cola Zero Sugar. Seagram's Ginger Ale, Diet Ginger Ale, Tonic and Seltzer.

Is coffee or Coke Zero better for you? ›

Coffee is the clear winner, particularly if you don't add sugar! Cola has 43 times more calories than the same volume of long black. A can of cola contains about ten teaspoons of sugar and virtually no nutrients.

What diet soda has no caffeine? ›

Caffeine-Free Soda
  • Pepsi Zero Sugar (12 fl. oz., 36 pk.) Current price: $0.00. Select club.
  • Diet Pepsi (12 oz. cans, 36 pk.) Current price: $0.00. Select club.
  • Manzanita Sol Soda Apple (12 fl. oz., 24 pk.) Current price: $0.00. Select club.
  • Pepsi (16.9 fl. oz., 24 pk.) current price: $13.98$13. Current price: $13.98.

What soda has the most caffeine? ›

Wrapping Up: What soda has the most caffeine? Amongst regular sodas, Pepsi Zero Sugar contains the most caffeine. Gulping a 12 oz can of this soft drink gives you 69 milligrams. Most healthy adults can safely consume 400 mg of caffeine per day.

Can diabetics drink Coke Zero? ›

A. No, zero sugar soda uses artificial sweeteners, which increases people's weight. Increased weight, in turn, is linked to the worsening of diabetes. Hence, zero soda is not suitable for diabetes.

Is it OK to drink Coke Zero everyday? ›

Drinking a reasonable amount of diet soda a day, such as a can or two, isn't likely to hurt you. The artificial sweeteners and other chemicals currently used in diet soda are safe for most people, and there's no credible evidence that these ingredients cause cancer.

Which is worse sugar or aspartame? ›

So, for most people, natural sugars are a far better alternative to either artificial sweeteners or regular table sugar. For people living with diabetes or prediabetes, though, you still need to go easy on some natural sugars.

What Coke has caffeine but no sugar? ›

6. Coke No Sugar contains caffeine, as do Coke Zero and Diet Coke. The amounts of caffeine in the drinks is very similar. 7.

Which is healthier Coke Zero or Diet Coke? ›

There are very few differences between Diet Coke and Coke Zero. As such, there is no concrete, measurable reason to suggest that one is superior to the other. Nutritionally, there are no significant differences. Their ingredient and caffeine contents are similar as well, so neither is healthier than the other.

Does Coke Zero have more caffeine than coffee? ›

Coke Zero has 32 milligrams of caffeine per 8-ounce serving, while an average cup of coffee has 90 milligrams.

Is Coke Zero going to be discontinued? ›

Please tell us the rumours about Coke Zero being discontinued aren't true". The drinks giant finally responded to the rumours that had been tearing their fans apart. They replied, saying: "Don't worry, Coke Zero is here to stay!"

Why is there no caffeine free Coke anymore? ›

Since 2020, Caffeine-Free Coca-Cola has been difficult to find in stores, both in cans and 2-liter bottles. The explanation given by various non-official sources is that due to a shortage of aluminum cans due to COVID-19 related issues, less popular products are in short supply.

What soda at McDonald's is caffeine free? ›

McDonald's Fanta® Orange is a caffeine-free soda that makes it a perfect addition to any of your favorite McDonald's items. Available in small, medium and large fountain drink sizes. There are 150 calories in a small Fanta® Orange at McDonald's. *At participating McDonald's.

Why is Coke Zero healthier? ›

The main difference between coke and coke zero is the sugar content. When drinking coke zero as opposed to regular coke, you are consuming significantly less sugar which is a positive for weight loss and reduces the risk of weight-related diseases.

Is Coke Zero healthier than beer? ›

Sodas have ZERO health benefits. They contain zero vitamins or minerals. Beer has some of these, but not enough to provide a substantial amount of micronutrients to stop taking your vitamins.

Why does caffeine free Coke taste better? ›

Removing caffeine from coffee or cola changes the flavor of the drink because the resulting products are missing the bitterness of caffeine, the flavors resulting from interactions between the caffeine and other ingredients in the product, and also because the process of removing caffeine may impart or remove flavors.

Does Dr Pepper have caffeine? ›

Some of the more common national-brand carbonated beverages analyzed in this study with their caffeine contents were Coca-Cola (33.9 mg/12 oz), Diet Coke (46.3 mg/12 oz), Pepsi (38.9 mg/12 oz), Diet Pepsi (36.7 mg/12 oz), Dr Pepper (42.6 mg/12 oz), Diet Dr Pepper (44.1 mg/12 oz), Mountain Dew (54.8 mg/12 oz), and Diet ...

What can I drink that is caffeine free? ›

Carbonated water, which is always free of caffeine, includes seltzer water, tonic water, club soda, and sparkling water. Some are consumed on their own, while others are used to make mixed drinks.

Does Gatorade have caffeine in it? ›

Does Gatorade Have Caffeine? The simple answer is no. Caffeine is a stimulant found in tea, coffee, and soda, but it is not present in Gatorade. However, you will find electrolytes, such as potassium and sodium, in Gatorade, which are essential to keep you hydrated.

Does Coke or Dr Pepper have more caffeine? ›

Dr. Pepper has 26 mg of caffeine in a can of 7.5 fluid oz., 42 mg in a can of 12 fluid oz., and 70 mg in a bottle of 20 fluid oz. Coke has 21 mg of caffeine in a can of 7.5 fluid oz., 32 mg in a can of 12 fluid oz., and 53 mg in a bottle of 20 fluid oz.

What was the 80s caffeine soda? ›

Jolt Cola came out in 1985 and targeted younger people, students, and young professionals. The soda became an underground hit for containing twice the caffeine of regular colas. If you grew up in the 80s, taking your first sip of Jolt was like a rite of passage.

Does 7 Up have caffeine? ›

7 Up (stylized as 7up outside North America) or Seven Up is an American brand of lemon-lime-flavored non-caffeinated soft drink.

What 3 drinks should diabetics avoid? ›

People with type 2 diabetes should avoid beverages that have high sugar content, such as:
  • Alcoholic drinks. ...
  • Sports drinks/energy drinks. ...
  • Sweetened and unsweetened fruit juices. ...
  • Sodas. ...
  • Sweet tea.

Why does Coke Zero raise blood sugar? ›

Does Coke Zero raise blood sugar? No, Coke Zero does not raise blood sugar levels. Coke Zero is a sugar-free, low-calorie carbonated beverage that does not contain any sugar or carbohydrates. This means that it will not cause a spike in blood sugar levels the way that regular soda or other sugary beverages can.

Does Coke Zero trigger insulin? ›

Ingestion of these artificial sweeteners (AS) results in the release of insulin from pancreas which is mistaken for glucose (due to their sweet taste). This increases the levels of insulin in blood eventually leading to decreased receptor activity due to insulin resistance.

What does aspartame do to your body? ›

It causes neuropsychiatric reactions such as headache, convulsions and depression [83]. In the body, aspartame is transformed into phenylalanine (Phy), aspartic acid and methanol. These metabolites can affect the neurochemical state of the brain and influence the level of neurotransmitters [12].

What sweetener is used in Coke Zero? ›

While both Coca-Cola Zero and Diet Coke contain the same sweeteners (a blend of aspartame and acesulfame-potassium or Ace-K) and contain zero calories, Coca-Cola Zero uses a different flavour base and delivers the great taste of Coca-Cola with zero sugar.

How much caffeine is in Coke Zero vs Diet Coke? ›

Tasting Table compared the two drinks and found that Diet Coke has more caffeine. While Diet Coke has 46 mg per 12-ounce can, Coke Zero only has 34 mg per 12-ounce can. The testers concluded that neither can is more beneficial than the other for health reasons.

What soda is the healthiest to drink? ›

Healthiest Sodas to Drink
  1. Sierra Mist. This soda wins by a small margin, as it has the nutritional value of 140 calories, 37 g of sugar, and 35 mg of sodium for 12 oz. ...
  2. Sprite. As you may have guessed, Sprite takes the second spot. ...
  3. 7UP. What is this? ...
  4. Seagram's Ginger Ale.
Jul 25, 2022


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