Diet Coke contains carbonated water and artificial sweeteners (such as aspartame, acesulfame K or sucralose). Other additives include caramel color which comes from food-grade acid, and potassium sorbate to protect taste.
Diet Coke is a light cola drink with an irresistibly fizzy flavor. It’s ideal for those who want to live life without all the added sugar or calories.
Diet Coke has been around since 1982 and it is the leading sugar-free soft drink in America. But what are its nutritional facts?
Diet Coke Nutrition Facts

Zero Calories
Many people believe that diet soda is an ideal way to shed some pounds, since it doesn’t count toward your calorie intake.
Unfortunately, drinking diet soda may have adverse effects on your health and increase the likelihood of heart disease or cancer.
Zero calories are often claimed on food and beverage labels, and this practice is legal according to FDA regulations.
Diet Coke contains aspartame, a zero-calorie additive that’s 200 times sweeter than sucrose – the sugar found in regular sodas.
Diet coke also contains flavoring additives like sodium benzoate that add minimal nutritional value but provide some subtle aroma.
Diet coke also contains citric acid and caffeine, both used in metabolism but without any significant caloric content.
Caffeine acts as a neurotransmitter agonist without being converted to energy; consequently, both ingredients add zero calories to your beverage of choice.
Zero Sugar
Diet drinks can be an effective way to cut back on sugar consumption and boost your wellbeing, but they may come with side effects if consumed frequently.
Diet coke, for instance, contains phosphoric acid which can damage teeth and bone health. Furthermore, it could pose an increased risk for stroke and heart disease.
Diet Coke and Coke Zero both contain caffeine, which may have adverse effects on some individuals even at moderate amounts. According to the United States Department of Agriculture, adults should not exceed 400 milligrams (mg) per day.
Diet sodas often contain artificial sweeteners, which may not be ideal for your health. Since these substances raise blood sugar levels, it’s best to limit your consumption of such items.
Zero Caffeine
Diet coke contains much less caffeine than standard Coke coffee – just 34 milligrams in a 12 fluid ounce can, versus the 69 mg found in standard Coke.
Coke Zero is an ideal option for those with caffeine and energy drink sensitivity, as both sodas contain only a moderate amount of caffeine – well below the recommended daily intake of 400 mg for adults.
Both beverages contain acesulfame potassium, a calorie-free sweetener that passes through the body without raising blood sugar levels. This explains why they both taste similar to regular Coke but differ in their aftertaste.
These beverages have a slightly different taste than regular Coke, yet both remain remarkably delicious. They make for an excellent alternative if you want to drink cola in moderation but don’t enjoy the artificial ingredients and high caffeine content of original sodas.
Zero Carbs
Diet sodas are a popular option for those on low-calorie diets. These beverages lack carbohydrates and use zero-calorie sweetener to reduce sugar intake.
These products can be made with various sugar substitutes like aspartame and acesulfame potassium (Ace-K). Though these sweeteners have no calories, they still affect blood sugar levels.
Though a diet soda may seem like an ideal choice for those on a low-carbohydrate diet, it’s essential to consider its health consequences. Studies have indicated that drinking diet sodas could increase your risk of developing type 2 diabetes and obesity.
Keto dieters should steer clear of artificially sweetened beverages altogether, in favor of alternatives like Coca-Cola Lite or Coke Zero instead.
What Are the Ingredients in Diet Coke?

Diet Coke contains carbonated water, caramel color, phosphoric acid, natural flavors including caffeine, aspartame, acesulfame K, sodium citrate and potassium benzoate or potassium citrate.
Aspartic acid and phenylalanine are the two main amino acids that make up the low-calorie additive aspartame.
It is important to note that Diet Coke contains phenylalanine and should be avoided by people with phenylketonuria (PKU), a rare genetic disorder that prevents the body from breaking down phenylalanine.
What Is the Purpose of Each Ingredient in Diet Coke?
Aspartame, citric acid, potassium benzoate (to preserve flavor), citric acid, natural spices, and carbonated water are all ingredients in Diet Coke.
Carbonated water is used to give the drink its fizziness. Caramel color is added for color. Aspartame and acesulfame potassium are used as sweeteners instead of sugar.
Phosphoric acid gives Diet Coke its tangy flavor. Potassium benzoate is added to protect the taste of the drink. Natural flavors are added to enhance the taste of Diet Coke. Citric acid is used to add tartness to the drink. Finally, caffeine is added for its stimulant effect.
Diet Coke has no calories or sugar since it uses artificial sweeteners instead. A 12-ounce serving of Diet Coke provides 0 grams of total fat, 40 mg of sodium, 0 grams of total carbohydrates and sugars, and 0 grams of protein.
The amount of caffeine in a 12-ounce serving of Diet Coke is 46 mg.
While Diet Coke uses only aspartame as its sweetening agent, Coca-Cola Zero Sugar (formerly known as Coke Zero) uses both aspartame and acesulfame potassium.
Some people find that Diet Coke tastes more like regular Coca-Cola than Coca-Cola Zero Sugar does.
However, this can vary depending on factors such as whether you get it from a beverage fountain or in a can or bottle. Neither tastes exactly like original Coca-Cola.
Are There Any Health Risks Associated With Consuming Diet Coke
Studies have linked the consumption of diet soda to several health risks. These include weight gain, disruptions to gut health, cardiovascular problems, decreased bone density, headaches, and an increased craving for sweets.
More recently, studies have also linked the habit of drinking diet soda to an increased risk of stroke. Artificial sweeteners and other questionable additives in diet soda may be responsible for these negative health effects.
While drinking a reasonable amount of diet soda a day is not likely to hurt you, it is wise to err on the side of caution and save it for an occasional treat. To decrease your intake of diet soda, try swapping it for other drinks such as sparkling water or herbal tea.
Staying hydrated with water is also important. Stocking up on healthy alternatives and reducing your consumption gradually over time can help break the habit.
In conclusion, while there are no direct health benefits associated with drinking diet soda, some people may find it helpful in reducing their sugar intake if they wean themselves off sweetened sodas by drinking diet sodas.
However, research has linked a wide range of health risks to drinking too much diet soda. It is best to consume it in moderation or avoid it altogether if possible.
Good news: if you’re concerned about the health risks associated with diet soda, there are ways to reduce your consumption.
For instance, try to limit your daily soda consumption to six or eight ounces and drink plenty of water throughout the day. Furthermore, reduce sugary foods and drinks, as well as junk food intake.