Can You Drink Coke Zero Sugar on The Keto Diet?

Keto dieters often wonder whether they can consume Coke Zero Sugar or Diet Pepsi on their low-carb diet. The answer is yes, but only if you follow some guidelines.

Coke Zero Sugar is a new version of Coca-Cola’s flagship soft drink. This diet cola has no added sugars, artificial sweeteners, colors, flavors, preservatives, caffeine, or alcohol.

Can You Drink Coke Zero Sugar on The Keto Diet?

Coca-Cola zero has sweeteners in it, but it still tastes great. The ingredients include water, caramel coloring, phosphoric acid, natural flavors, citric acid, caffeine, sodium benzoate, potassium sorbate, guarana extract, xanthan gum, sucrose, and polydextrose.

Coca-Cola has been making people happy since 1886 by giving them a refreshing drink. Coke zero is now available in stores across America, but you might be wondering how much sugar is really in it.

Here are some facts about Coke Zero and why it tastes great alongside a keto diet.

What Exactly is Coke Sugar Zero?

Within the past few years, Coca-Cola Zero actually altered its name to the name Coke zero sugar specifically. Their website can tell us exactly what has changed in the recipe if there are any changes at any given time.

Just as the recipe for Coke Zero, Coke Zero’s Sugar brand is still slightly sweetened by things like artificial sweeteners such as aspartame and acesulfame k.

This unique blend of the natural flavor, which is unique to the brand of Coke itself, is still relatively the same. Therefore, the ingredient list itself on the nutritional facts panel on the cans and the bottles by Coca-Cola have not at all changed.

The manufacturers at Coca-cola have made a uniquely great-tasting type of coke zero, which, consumers adore and love almost as much as their regular coke recipe.

Regular Coke contains about 200 calories per 12-ounce serving. Coke Zero contains around 20 calories per 12-ounce serving, but still contains high fructose corn syrup (HFCS), artificial dyes, and other chemicals.

Sweeteners and Ingredients

Ingredients of the brand of Coke Zero Sugar should include Carbonated Water, Some forms of Caramel Color, Aspartame, Phosphoric Acid, Natural Flavors, Benzoate, Acesulfame Potassium, Potassium Citrate, Caffeine, and Artificial Sweeteners. 

What Is Acesulfame Potassium and Aspartame?

Aspartame is actually a very-low-calorie style sweetener that is used in many products, including diet soda. People who suffer from PKU should avoid foods containing phenylalanines, such as aspartame.

Acesulfame potassium has been proven to be safe for human consumption. But is it keto-friendly? 

Aspartame and acesulphame potassium are both safe for people who are following a ketogenic diet. They are also safe for people who want to add some form of sweetness directly to their foods.

Erythritol, monk fruit, or stevia are better options if you’re trying to follow a keto diet.

Nutritional Facts About Coke Zero Types of Flavors

There are usually four main Coke Zero Sugar flavors that are on the market, these include original, vanilla, cherry, and an orange-vanilla flavor.

One can is actually roughly a 12fl oz size serving, which should contain 7.5fl oz cans, 8fl oz bottles, 8.5fl oz bottles, 16fl oz cans, 20fl oz bottles, and 24fl oz bottles. 

There should be around 11 different packaging sizes Coke Zero Sugar offers. Be aware that the serving size is a 12fl oz can, so you can be guided on how much to consume.

The Diet Coke and the Cokes Zero Sugar actually do share some similar components. The main difference is actually that Cokes Zero Sugar may contain more phosphorous acid than Coke Zero Sugar contains zero calories, zero carbs, zero sodium, zero potassium, and zero caffeine. It also contains sugar. 

There is another packaging that consumers should know about if the canned Coke Zero Sugar isn’t available. 

Is Coke Zero The Same As Diet Coke?

Diet coke has less phosphoric acid than coke zero. But both contain carbonic acid. Carbonic acid is what makes soda fizzy. So the fact that diet coke has less phosphorous acid doesn’t make it any healthier.

Diet Coke doesn’t contain any carbohydrates or calories. This means it won’t cause your body to go into ketosis.

What Exactly are Phosphoric Types of Acid?

Phosphorus is added to soda to make it taste better. It is a main essential part of our body, but too much of it can cause bone problems. Too much can be found in some soft drinks.

Is Coca-Cola Coke Zero a Healthy Keto-friendly Choice?

Coke Zero Sugar is actually okay for those who want to eat a sturdy low-carb style keto diet because it contains zero calories, but it still contains a few types of artificial sweeteners.

Therefore, if you’re following a very strict keto diet, consider not drinking it.

Cokes are carbonated drinks made up of water, phosphoric acid, citric acid, caffeine, and other ingredients. These ingredients do not contain any carbohydrates or calories.

However, the drink contains artificial sweeteners, which may cause some people to gain weight. Caffeine gives you an energy boost, but it also dehydrates you if you drink too much.

Can You Drink Coke Zero Sugar on The Keto Diet?

You’d need to consume more than five or six 12-ounce (355 mL) cans of Coke Zero to see any dehydration effects. Some people may be more sensitive than others to caffeine’s effects.

 Caffeine contains sodium and potassium, but it also contains very few nutrients. Other foods contain much more nutrition than coffee does. Coffee triggers side effects such as anxiety, a racing heartbeat, and difficulty sleeping.

Cola may lead to osteoporosis. While people who follow a ketogenic diet should drink plenty of water, it’s important to remember that soda contains high amounts of sugar and artificial sweeteners.

That means drinking too much soda could actually cause dehydration.

Things to Consider Before Drinking Coke Zero Sugar on Keto

Diet soda may be bad for your health. People who drink diet soda often develop problems such as diabetes and high blood pressure.

A study found that people who drank diet soda were more likely to get type 2 diabetes than people who didn’t drink any soda at all.

Another study found that women who drank diet soda had higher levels of insulin resistance and abdominal fat than women who drank regular soda.

Phenylalanine interacts with antipsychotics. Diet drinks may cause side effects, therefore water is better than Coke Zero.

How Do I Maintain a Keto Diet?

The Keto diet is about using up all your stored fats and burning them off. You need to eat a lot of fat and protein to stay in ketosis. You also need to avoid carbs.

Ketogenic diets aim to burn fat as fuel. High-fat, low-carb diets are often used by athletes who want to lose weight quickly. 

A typical keto diet includes lots of healthy fats, moderate protein, and limited amounts of carbohydrates.

Is Coke Zero Sugar Allowed When on Keto?

While beverages such as Diet Coke are technically keto-friendly, they may lead you towards cravings for more.

A review published suggests that artificially sweetened sodas may trick your body into thinking it’s getting the calories and carbs it needs from the diet soda.

Your body then thinks it’s not getting enough and makes up for it by eating more than it should. This could be an issue while on Keto. However, there are lots of delicious drinks out there. You’ll want to try some of them!

Diet drinks are great for people who want to lose weight. Sugar substitutes don’t interfere with weight loss efforts. Ketogenic foods are easy to prepare and store. Keto foods are more convenient than other diets.

When choosing a diet drink, check out the nutrition label to see how many carbs it has. A diet drink should have few carbs.

Great Alternative to Coke Zero Sugar

Coke Zero Sugar is naturally low in calories and carbs and contains less than half the amount of sugar found in regular soda. If you want to enjoy a refreshing beverage without sacrificing flavor, try this delicious recipe.


  • 1/2 cup of water
  • 1 teaspoon of baking powder
  • 3 tablespoons of unsalted butter
  • 1 tablespoon of coconut oil
  • 4 teaspoons of vanilla extract


Combine all ingredients in a small saucepan over medium heat. Stir until butter melts completely, then remove from heat. Pour into a glass jar with a lid and allow it to cool for at least an hour before using. Store in refrigerator for up to two weeks.

Final Thoughts

Coke Zero Sugar is a ketogenic drink that contains zero carbs. It is also an excellent choice if you’re trying to lose weight.

However, it’s not recommended for those who are on a strict low-carb diet because it contains aspartame. Other keto drinks include Kombucha, Bulletproof Coffee, and Matcha Latte.

You shouldn’t drink Coke Zero if you’re following a ketogenic diet because it contains artificial sweeteners. Artificial sweeteners aren’t bad for you, but there is still more research needed regarding them.

Drinking Coke Zero instead of regular Coke isn’t going to make a difference when you’re trying to get into ketosis. Water is still the best option.

We hope that this article has given you an insight into the world of drinking coke with zero sugar while on a keto diet and if you can truly drink it alongside the diet as a healthy, balanced lifestyle. 

Anna Kadance