Can I Have Cream in Coffee When Fasting?

cream in coffee while fasting

Can I Have Cream in Coffee When Fasting?

My husband and I tested our blood glucose and ketones after drinking coffee with cream to see if we could get closer to answering the question: Can I have cream in my coffee while I am fasting?

We’ve concluded that yes, it is ok, but there are five important things that you need to keep in mind for optimal health and weight loss benefits.

Can I Have Cream in Coffee When Fasting? [Video]

In this video, you will learn…

  • The results of testing blood glucose and ketones after drinking coffee with cream.
  • Five things to consider when it comes to cream in coffee while fasting!

Testing the Effects of Cream in Coffee when Fasting!

On my second YouTube channel that I run with my husband, Keith, we perform a lot of small-scale tests to determine how different foods affect our intermittent fast.

On testing days, we get up in the morning, take our baseline blood glucose and ketone readings, consume something, and then retest our blood at 30, 60, and 120 minutes.

What we’d like to see is that a food or drink does not cause a spike in glucose or a drop in ketones, because that may indicate a rise in insulin. Insulin is the fat-storing hormone, so if it goes up, fat is being stored, not released and burned.

When we tested heavy cream, the result was favorable meaning it caused a slight drop in glucose and a slight rise in ketones.

glucose and ketones while having cream in coffee

From that, we concluded that cream in your coffee would not knock your body out of fat-burning mode, and therefore it was okay to consume during your intermittent fast!

Cream in coffee and fasting

Now admittedly, these home experiments with just two subjects are far from a rigorous scientific study. There are several factors to consider when determining if you’d like to add cream to your coffee.

Want more info on what you can put in your coffee when Intermittent fasting? See our complete test here: What Can I Put In My Coffee when Intermittent Fasting?

Consideration #1: Black Coffee vs Coffee with Cream

First off, in our home experiment, coffee with cream was not quite as favorable as black coffee alone.

black coffee vs cream in coffee

Keith had more of a drop in glucose and I had more of an overall rise in ketones with black coffee compared to coffee cream. While cream did not stop our fat burning, it may have slowed it down.

cream in coffee and fat-burning

Consideration #2: Insulin Was Not Directly Tested

Secondly, we did not directly test insulin, which is the hormone that determines if fat is to go into and out of storage. Insulin is not something that you can test at home. If you experience a rise in blood glucose and a drop in ketones after consuming food, it is fair to assume that insulin is entering your blood.

Heavy cream is mostly fat and fat has been shown to produce little if any change in insulin levels. Despite the fact that we don’t clearly know what was happening to our insulin levels, we felt fairly comfortable stating that cream did not cause a significant rise in insulin.

Consideration #3: Cream Has Calories

The third thing to consider is that heavy cream has calories and calories are energy. Your body will likely use those easily accessed calories before returning to the less accessible fat calories stored on your body.

Note: If you follow the strictest definition of a fast, which would be water-only or nothing at all, then you are breaking your fast by consuming calories.

Consideration #4: Multiple Cups of Coffee with Cream?

The fourth consideration is that we tested the effects of one tablespoon of cream over a two-hour period.

If you have three cups of coffee over the course of a morning and you add cream to each of those cups, then you are providing your body with a consistent source of energy instead of burning it from your body stores.

How much cream in coffee when fasting

Consideration #5: What about Autophagy?

I see a lot of people concerned that any number of calories consumed during a fast will shut down autophagy. Autophagy is a self-cleaning process that your body has time to perform because resources are not used for the digestion of food.

intermittent fasting and autophagy

While intermittent fasting does lend itself to better autophagy, it is challenging to determine how much cream in your coffee impacts the process.

I have a video on my YouTube channel that discusses autophagy and intermittent fasting if you’d like to look into that topic further!

Cream in Coffee When Fasting: The Bottom Line!

The bottom line is that intermittent fasting is a tool that can help you reach your weight loss goal. If cream in your coffee makes it easier for you to stretch out the time between meals, then it is helping, not hurting.

My husband, Keith, lost 80 pounds using intermittent fasting paired with a low-carb and then keto diet.

Dr. Keith Intermittent Fasting Weight Loss

During his fasting periods, he added cream to his coffee, which made his weight loss journey easier and more enjoyable. His results show that consuming cream did not take away from the effectiveness of his plan.

Thanks for reading and I will see you back here next week!

What Breaks a Fast? Our Tests

About the Author

Dr. Becky Gillaspy, DC graduated Summa Cum Laude with research honors from Palmer College of Chiropractic in 1991.

7 thoughts on “Can I Have Cream in Coffee When Fasting?

  1. I also use Stevia in my herbal teas and green tea. Is there a difference between Stevia in packets from the supermarket and Liquid Stevia from the health food store, when it comes to glucose and ketone testing?

  2. Thank you for this post. Your timing is perfect! My only struggle with the program is the timing of when to drink my coffee and what to add to it. While intermittent fasting I try to not drink coffee until I break my fast, but some days it’s hard. Since starting your program I switched from CoffeeMate to pure cream and Stevia or Truvia. It is good to have confirmation on the days I struggle, I’m not impeding my progress. Thanks again for consistently providing relevant content.

  3. Your timing is so perfect. I’m doing the same exact thing. The coffee with whole cream is my crutch. I do add stevia. I’m not sure how that affects things. In fact, that would be an interesting test, especially with all of the talk of artificial sweeteners and their effects on body sugar. Thank you and congrats to your husband.

  4. Thank you ! Love reading and watching your videos.
    Your much help, and you answers a lot of my questions..?

Leave a Reply

Your email address will not be published. Required fields are marked *

4 Daily Habits That Give Your Body No Choice But to Lose Weight

Get Free Access

Enter your information below for instant access to the strategy & free video series that explains how to get the most out of the strategy! 

  • This field is for validation purposes and should be left unchanged.

Get Dr. Becky's 4 Daily Habits for Weight Loss