What Can You Add To Coffee While Intermittent Fasting? [Complete List]

Updated: Jan 19

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If you're using Intermittent Fasting but you LOVE your coffee, it's important to know what you can add to your coffee while fasting and what you can't. Today, I'm sharing a complete list of what you can add to your coffee while Intermittent Fasting without breaking your fast!

what can you add to coffee while fasting

What Can You Put In Your Coffee While Fasting?

It's first important to determine what type of fasting that you're using. With a "clean" fast, anything added to coffee will break a fast. In fact, depending on who you talk to, even coffee can break a fast. However, if your main goal with Intermittent Fasting is to tap into fat burning mechanisms, lower body fat percentage and achieve a weight loss goal, then a dirty fast (aka fasting mimicking) is perfectly acceptable. This means items that don't contain protein or carbs (up to 1 gram of each) is fine in your coffee. If you're curious about learning more about the differences between a "dirty" and "clean" fast, you can check out my article below.

Related: Dirty Vs. Clean Fasting | Which Is BETTER At Burning Fat As Fuel?

Complete List Of What You Can Put In Your Coffee While Fasting

This list meets the "dirty" fasting criteria of keeping the storing hormone, insulin, from spiking and allowing the body to use fat as fuel.

Pssst - wondering what type of fasting is best for your goals? Click below for my free Intermittent Fasting Schedule quiz to find out!

Related: [QUIZ!] Find Out The BEST Intermittent Fasting Schedule For YOUR Goals!

Butter and Ghee

Both butter and ghee are nearly pure fat. This means it won't have any impact on the storing hormone insulin and won't break a fast. You can test out my super frothy Keto Coffee recipe using grass-fed butter with the video above.

Half & Half and Heavy Cream

Heavy whipping cream, just like butter and ghee, is nearly pure fat. Half & Half is fairly similar, but is essentially a more watered-down version of heavy cream. However, the carbohydrate and protein count can start to add up with these two ingredients. These are best limited to 1 Tbsp. in coffee while fasting. You can grab the science-y deets for why this is with my article HERE.

What Can You Add To Coffee While Intermittent Fasting

Coconut Oil and MCT Oil

Coconut oil is a great source of medium chain triglycerides (aka a high quality fat source). MCT oil is usually derived from coconut oil. This is why you'll often find either of these two ingredients in fasted coffee recipes, like my Keto Coffee recipe with the video above.

Cinnamon and Most Spices

Adding a bit of cinnamon, nutmeg or even turmeric is a great way to spice up (literally and figuratively) your coffee while fasting. Although with most spices, you'll want to stick with about .5 tsp. or less. Check out the deets with THIS article.