Is Diet Dr. Pepper Keto Friendly?

In this brief guide, we will answer the query “Is Diet Dr. Pepper Keto Friendly?” Additionally, we will explore some basics on keto diet, as well as some health concerns of consuming artificial sweeteners. Finally, the article briefly presents some alternative beverages to Diet Dr. Pepper.

Is Diet Dr. Pepper Keto Friendly?

Yes, Diet Dr. Pepper is keto friendly due to its lack of calories and simple sugars (1). You can include it in your diet to add some sweet beverages (2).

However, you should be aware that an excessive consumption of non-caloric sweeteners can produce negative effects on your health in the long-term; for instance, increasing your risks of cancer (3,4).

Why Are Artificial Sweeteners Keto Friendly?

Artificial sweeteners like Aspartame, Acesulfame K, and sucralose are not caloric sweeteners, and they are not metabolized in your body (3).

Because the keto diet is focused on avoiding carbohydrates, especially simple sugars, artificial sweeteners are allowed in a ketogenic diet (3).

Are There Any Health Concerns About Eating Artificial Sweeteners?

There is controversy if there are any health concerns about consuming artificial sweeteners, according to some experts, there is no conclusive evidence to ensure that there are possible health concerns (3,4). 

The artificial sweeteners used in Diet Dr. Pepper are acesulfame K and aspartame. Acesulfame K is a potassium salt 200 times sweeter than sugar, it has a bitter after-taste; if Acesulfame K is in adequate amounts (15 mg/kg), it is not harmful for your health (5,6).

Aspartame, on the other hand, is a protein-derived sweetener synthesized with aspartic acid and phenylalanine. High consumption of aspartame (>7.5 mg/kg) has been associated with cancer and also it is potentially dangerous to people with phenylketonuria (7,8).

Phenylketonuria is a genetic condition where the metabolism cannot correctly process Phenylalanine. When Phenylalanine is not properly metabolized, it would produce phenyl ketones which are toxic for your body (8).

A hyperphenylkenoturia can cause from annoying symptoms like eczema or musty odor, to severe symptoms like epilepsy and impairment of cognitive functions (8).  

However, there is evidence that artificial sweeteners can modify your microbiota, which can cause inflammation and there is speculation of their role in increasing the risk of intestinal bowel disease (3).

What are the Ketogenic Diet Principles?

Keto Diet is a popular meal plan that reduces your carbohydrate intake to equal or less than 50 g of carbohydrates a day. This low consumption of carbohydrates will deplete your carbohydrate energy stores (glycogen) (2).

Once your carbs energy stores are empty, your body will start using fats for providing energy to every cell. This is also known as being in a “ketogenic state”, because the fats’ metabolism produces some compounds like acetone, acetoacetate, and β-hydroxybutyrate, known as ketone bodies (2).

You can find further information on Keto Diet in the article found in the following link. In the aforementioned article, you will learn what keto diet is, the principles, and the possible health benefits or precautions you should consider.

How to Incorporate Diet Dr. Pepper in a Well-Formulated Keto Diet?

The best way you can incorporate diet Dr. Pepper in a well-formulated keto diet is by drinking this beverage with moderation and alongside nutritious food. Neither regular soda or diet soda are recommended to consume in excess in any diet (9).

You should look for professional advice from your nutrition specialist to adjust a moderate intake of diet Dr.Pepper in your meal plan (9).

What are other Alternative Keto-Friendly Beverage Options?

Herbal infusions and Teas are excellent keto-friendly beverage options. Herbal infusions and natural teas are loaded with highly valuable antioxidants, which can exert tremendous benefits to your body, for example (10):

  • Reduce cancer risks
  • Helps to regulate glucose and insulin in your blood
  • Protection to your liver
  • Reduce stress and anxiety

Here are some examples of herbal infusions and teas: lavender, chamomile, fenugreek, stinging nettle, spearmint, hibiscus, yerba maté, echinacea, green tea, and black tea (10).

Remember that your beverages should be sugar-free to be keto-friendly, you can use monk fruit or stevia, they are natural non-caloric sweeteners that can be a better option compared to artificial sweeteners like aspartame or sucralose (11).


In this brief guide, we answered the query “Is Diet Dr. Pepper Keto Friendly?” Additionally, we explored some basics on keto diet, as well as some health concerns of consuming artificial sweeteners. Finally, the article briefly presented some alternative beverages to Diet Dr. Pepper.


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  1. Paoli A, Mancin L, Bianco A, Thomas E, Mota JF, Piccini F. Ketogenic diet and Microbiota: Friends or enemies? Genes,. 2019;10(7):534.
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