Does Cold Brew Break a Fast? Unveiling the Truth for Intermittent Fasters

Does cold brew break a fast? Generally, no. Black cold brew without additives won't disrupt your intermittent fasting. With just 2-5 calories and appetite-suppressing caffeine, enjoy nitro cold brews too, all without breaking your fast.

Does the thought “does cold brew break a fast” keep you up at night? If you’re an intermittent fasting enthusiast who loves a good cup of cold brew, you’re likely torn between the metabolic benefits of fasting and the caffeinated joy that cold brew brings.

The short answer is, if consumed correctly, cold brew doesn’t have to break your fast.

Curious to know more? Stick around. I’m an expert in both the realms of intermittent fasting and coffee brewing, and I’ll guide you through the nuances of how cold brew interacts with fasting states. You’ll learn not only the impact of cold brew on your fasting window but also how additives like stevia, heavy cream, or cinnamon could change the game. Let’s dive into the brew-tiful relationship between cold brew and fasting!

Key Facts:

  1. Cold brew coffee has between two and five calories per cup.
  2. Black cold brew without additives will not break a fast for intermittent fasting purposes.
  3. Nitro cold brews likely won’t break your intermittent fasting.
  4. The nutrition information for a grande Starbucks cold brew indicates 15 calories, which might affect a fast.
  5. Adding cinnamon to black coffee might break a fast.
(Source: Expert Team Research)

Does Cold Brew Break a Fast: The Core Question Answered

The straightforward answer is no, generally, cold-brewed coffee does not break a fast if consumed without additives. Now, let’s dig deeper. The calorie count in a typical cup of cold brew is between two and five. That’s almost negligible, especially when you compare it to the calorie content in other types of coffee or drinks.

Tip: Always check the nutritional facts if you’re buying pre-made cold brew. Some brands add sugar or other additives that can break your fast.

Does the Type of Cold Brew Matter?

Yes, the type of cold brew can matter. Additives like sugar, cream, and stevia can have an impact on fasting. For example, adding heavy cream to your coffee could potentially break your fast. On the other hand, there are virtually no calories in stevia, so it does not technically break the fast. But remember, it’s always best to stick to plain black cold brew to be on the safe side.

How Additives Affect Your Fast

Additives can significantly impact whether your cold brew breaks your fast. For instance, the nutrition information for a grande Starbucks cold brew indicates 15 calories, which might affect a fast. So, if you’re adding milk, sugar, or flavored syrups, you’re likely breaking your fast.

Intermittent Fasting and Cold Brew: A Match Made in Heaven?

Does Cold Brew Break A Fast
Does Cold Brew Break a Fast

Yes, cold brew and intermittent fasting can be a great match. There are various types of intermittent fasting, like the 16:8 method, where you fast for 16 hours and eat during an 8-hour window. Cold brew can fit perfectly into this lifestyle if consumed correctly.

Can Cold Brew Enhance Your Fasting Experience?

Absolutely, cold brew can enhance your fasting experience. The caffeine in cold brew acts as an appetite suppressant, which can be beneficial during your fasting window. It’s like having an ally in your corner during those tough fasting hours.

The Role of Caffeine During Fasting

Caffeine can be a game-changer during fasting. Not only does it help suppress your appetite, but it also gives you that much-needed energy boost. This can be particularly helpful during the latter part of your fasting window when energy levels might start to dip.

The Keto Perspective: Does Cold Brew Break Ketosis?

No, cold brew doesn’t have to break ketosis. In fact, it can fit quite well into a keto diet. Just like with intermittent fasting, the key is to avoid additives that contain sugars or carbs.

What About Flavored Cold Brews?

Flavored cold brews can be tricky. They often contain added sugars and thus more calories, which could potentially break your fast or kick you out of ketosis.

The Caloric Dilemma

Flavored cold brews can have hidden calories. Always check the nutritional information. Even a small amount of added sugar can disrupt your fasting or keto goals.

Other Factors to Consider

Your individual metabolism and personal preferences can also affect whether cold brew breaks your fast. Some people have faster metabolisms and might be more sensitive to even the smallest amounts of calories during a fast.

Should You Experiment?

Yes, you should experiment to see how cold brew affects your fast. Everyone’s body reacts differently, so it’s worth taking the time to see how yours responds.

How to Test Cold Brew’s Impact on Your Fast

Start by incorporating small amounts of plain black cold brew into your fasting routine. Monitor how you feel and any changes in your fasting results. If all goes well, you can gradually increase the amount.

FAQs About Does Cold Brew Break a Fast

Can I drink cold brew while intermittent fasting?

Yes, you can drink cold brew while intermittent fasting if it’s consumed without additives.

Why doesn’t cold brew break your fast?

Cold brew doesn’t break your fast because it has a negligible amount of calories when consumed black.

Does cold brew break ketosis?

No, cold brew does not break ketosis if consumed without additives like sugar.

What iced coffee doesn’t break a fast?

Plain iced black coffee without any additives won’t break a fast.


In summary, cold brew doesn’t have to break your fast if consumed correctly. It can even enhance your fasting experience by acting as an appetite suppressant. However, be cautious with additives like sugar, cream, or flavored syrups, as they can disrupt your fasting or keto goals. So, are you ready to make cold brew your fasting buddy?

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Nick Cho
Nick Cho

Nick Cho is a Korean-American entrepreneur and specialty coffee expert. Cho is a writer, speaker, and social media influencer, inspiring excellence in the specialty coffee industry.

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