The Truth About Drinking Diet Coke While Intermittent Fasting

Can I Drink Diet Coke While Intermittent Fasting?

Intermittent fasting is an increasingly popular dieting strategy that involves regular cycles of eating and fasting for a set period of time. Many people have wondered if it’s possible to drink diet coke while intermittent fasting. After all, diet coke has zero calories, so it would seem like a logical choice.

“Technically speaking, most diet sodas that have zero calories will not break a fast,” explains Autumn Bates, a certified clinical nutritionist. But what’s the connection between diet soda and fasting? Can diet soda still break your fast even though it has zero calories? Let’s take a look at the facts.

Can You Drink Diet Coke While Fasting?

Technically, you can consume a diet coke while intermittent fasting, as it’s a zero calorie beverage. However, many dieters recommend avoiding overly sweet-tasting, calorie free drinks while fasting. This is because artificial sweeteners can still trigger an insulin response, which can disrupt the fasting process.

Some experts suggest that it’s ok to include diet soda while fasting; because it does not contain calories. But it’s essential to understand the long-term effects of artificial sweeteners on your body. Studies have shown that artificial sweeteners can alter gut bacteria and cause you to crave more sweets, which can lead to overeating and weight gain.

Technically, diet sodas are okay to consume while fasting since these are calorie-free drinks that do not stimulate the mTOR, a protein kinase responsible for regulating cell growth and metabolism. However, some people might find that drinking diet coke while fasting makes them hungrier and can lead to overeating.

Alternatives to Diet Coke While Intermittent Fasting

If you’re looking for alternatives to drinking diet coke while intermittent fasting, there are plenty of options. Water is always the best choice and can help keep you hydrated and prevent dehydration. Unsweetened tea and coffee are also great options, as they are both calorie-free and provide a boost of energy.

If that’s you, diet soda is best left off your Intermittent Fasting Drinks list. Another option here could be stevia-sweetened soda (if your fasting period allows for it), as stevia is a natural sweetener that does not cause a spike in your blood sugar levels.

In addition, you can also make your own flavoured water by adding fresh fruits and herbs to your water. This is a great way to add some flavour to your water without adding calories. You can also try drinking sparkling water or adding a splash of juice to your water for a refreshing twist.


In conclusion, you can technically drink diet coke while intermittent fasting, as it has zero calories. However, many experts recommend avoiding artificial sweeteners while fasting, as they can still trigger an insulin response and disrupt the fasting process. Instead, stick to water, unsweetened tea and coffee, and flavoured water for a refreshing and calorie-free way to stay hydrated during your fast.

Does drinking Diet Coke interfere with fasting?

Drinking Diet Coke during Intermittent Fasting will not break the fast, since it has no sugar or calories. However, it may not necessarily help you reach your weight loss goals.

Is it permissible to consume beverages with no calories while doing intermittent fasting?

You can consume any beverage that is unsweetened, has no calories, and does not affect your macronutrient intake (fats, carbs, and proteins) during your fasting period.

Is it permissible to consume Coke Zero while following an intermittent fasting diet?

In summary, it is not necessary to avoid Coca Cola Zero during intermittent fasting, but it is advisable to minimize consumption of it as it may increase feelings of hunger and can cause a rise in insulin levels in some individuals.

Which beverages can be consumed while following an intermittent fasting diet?

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the truth about drinking diet coke while intermittent fasting 17 04 2023 2

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