Intermittent Fasting: 10 Things You Can Add To Your Coffee That Won't Break Your Fast

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If you're following Intermittent Fasting, you're not stuck to plain old black coffee during the fast. In fact, there are 10 things you can add to your coffee that won't break your fast. This helps to provide flexibility with your Intermittent Fast and make your experience a lot more enjoyable.

Let's dive into the list.

intermittent fasting coffee ingredients list

Heavy Cream or Half and Half

This is what I personally enjoy adding into my coffee (specifically heavy whipping cream). And I know this is controversial because it's technically a food, so you'll get a lot of people on the internet telling you that you can't have it.

If you're Intermittent Fasting for religious purposes or to maximize autophagy, then yes, these items will break a fast. But if you're looking to achieve a weight loss goal and minimize the insulin (the fat storing hormone) spike, then you have some flexibility with your coffee add-ons.

Related: What Breaks a Fast?

In fact, you're in the clear with up to one tablespoon of heavy cream or just under one tablespoon of half and half during the fast. This is because at one tablespoon, both heavy cream and half and half are nearly pure fat sources. Pure fat sources do not spike the storing hormone insulin and therefore does not shift the body out of using fat as fuel.

Cheers to that.

Psssst... curious how long YOUR Intermittent Fast should be? Take my FREE Intermittent Fasting Schedule Quiz by clicking the button below!


If you aren't familiar with L-Theanine, it's an amino acid extracted from green tea that has been studied to help reduce anxiety.(1) In fact, if you've been following my blog and YouTube channel for a while, you might have seen me use this quite a bit in the past to help manage my anxiety levels. Specifically with coffee, some people have reported that l-theanine helps to balance out the energy spike they get with caffeine without the possible jitters. In the amounts that are typically used to achieve these results, l-theanine will not break a fast.

To use l-theanine in coffee, you would pop open one of the supplement capsules and stir (or blend) the powder into your coffee.