Can I Drink Keto Coffee While Intermittent Fasting [No, but…]

  • Author: Kara
  • Date: October 9, 2022
  • Time to Read: 3 min.

Can I drink keto coffee while intermittent fasting? No, you cannot. Keto coffee contains ingredients that will raise insulin levels, and, in turn, break your fast. Don’t worry though, this does not mean that you have to miss out on your favorite caffeine kick. Read on to find out more.

What Is Keto Coffee

If you’re asking the question, can I drink keto coffee while intermittent fasting, my guessing is that you are already familiar with the goodness that is keto coffee?

There are a number of different takes on this, with some people adding butter, others MCT, or coconut oil. Others will add cream and some people will add zero sugar syrups, using keto-friendly sugar substitutes for flavor.

can i drink keto coffee while intermittent fasting

Here is our personal favorite keto coffee recipe.

Some people love keto coffee, others can not get used to adding fat to their coffee.

For me, it took a few goes to get used to adding fat to my coffee, but now, I love it.

Often I will skip breakfast and enjoy a full-fat keto coffee mid-morning, even when I am not intermittent fasting.

Let’s have a look at the different types of intermittent fasting.

Types of Intermittent Fasting

On keto, people will use intermittent fasting for different reasons, be it for health reasons or the healing effects that prolonged fasting will bring. For others, it will be purely for weight management. 

There are several main types of fasting;

Check out our article for more on keto intermittent fasting terms.

The whole point of intermittent fasting is to provide your digestive system with a break. It can then divert that energy to healing of the digestive system and beyond.

Check out what health benefits you can expect to experience at what point on the intermittent fasting timeline.

So, Can You Drink Keto Coffee While Fasting?

Does keto coffee break a fast? As keto coffee is full of fat, it is going to awaken your digestion. This is something that you are trying to avoid through intermittent fasting.

Intermittent fasting provides your digestive system with the time to refocus its energy on healing your body.

In short, that means no, you cannot drink keto coffee while intermittent fasting. Keto coffee will provide your body with fuel and awaken your digestive system.

The same goes for, ‘diet’ sodas, anything with artificial sweeteners which will cause an insulin response or anything that contains carbs, fat, or protein.

That does not mean that you cannot enjoy regular coffee (with no added milks, heavy whipping cream, sugar-free syrups, etc).

For reference, you should avoid the following drinks during a fast;

All of the above will break your fast.


Hydration is also really important, both on a keto diet, and when fasting. Check out our guide as to how much water you should be drinking on a keto diet.

Surprisingly, people can often under drink when IF. People will often confuse thirst for hunger, and, as such will dismiss these feelings and not drink.

Check out our article on feeling thirsty when in ketosis for more on this.

Furthermore, around 20% of our daily fluid intake comes from our food. Therefore, it is important to ensure that you are making up for this lost hydration by drinking more than you would normally.

Alternative To Keto Coffee Whilst Intermittent Fasting

We have clearly answered, no, to the question, Can I Drink Keto Coffee While Intermittent Fasting? So, if you cannot drink keto coffee whilst intermittent fasting, what can you drink?

For more information and top tips on what to drink while fasting, this article should help.

But, in short, here is a list of keto intermittent fasting approved drinks;

  • Water
  • Sparkling Water
  • Mineral Water
  • Black Tea
  • Green Tea
  • Black Coffee
  • Electrolyte Supplements

As you can see, you will not be short of things to drink.

So, Can I Drink Keto Coffee While Intermittent Fasting?

No, but…you can drink your regular black coffee (no added extras), and plenty of other drinks to keep you hydrated during your fast. Failing that, we have plenty of options for you above.

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