Does Collagen Peptide Break Intermittent Fasting?

Do Collagen Peptides Break Intermittent Fasting?

Intermittent fasting (IF) is a popular health and wellness trend that involves fasting for a certain period of time and then eating a normal diet during designated windows. As with any diet, it’s important to understand the rules and regulations of IF, including what foods and supplements are allowed. One of the most common questions is “Do collagen peptides break intermittent fasting?” If you’re curious about the answer, read on to learn more.

What is Intermittent Fasting?

Intermittent fasting is an umbrella term for various eating patterns, such as the 16/8, 5:2, and Eat-Stop-Eat methods. It involves cycles of fasting and eating, with the fasting periods lasting anywhere from 12 to 24 hours. During the fasting period, no food or drink (except for water) is consumed. The goal of IF is to give the body time to rest and recharge, and to provide health benefits such as improved metabolic health, weight loss, and increased energy levels.

Do Collagen Peptides Break a Fast?

If you define fasting by the traditional sense, meaning, abstinence from food and/or drink for a certain amount of time, then yes, collagen technically breaks a fast. Technically, any food, drink, or supplement that has even a single calorie is enough to break a fast, so collagen would, too. However, most people who practice intermittent fasting recognize that some calorie-containing foods and supplements can be consumed during a fast without breaking it.

Can Collagen Help During Intermittent Fasting?

Studies have shown that one serving of collagen peptides has minimal impact on ketone production, which means that if your fasting focus is on ketosis, collagen would be suitable. Collagen is also a great source of protein, which can help you feel fuller for longer during a fast. While collagen does technically break a fast, it is still allowed under many IF regimes due to its low-calorie profile.

The Benefits of Collagen During Intermittent Fasting

Collagen is a great choice during intermittent fasting for a few reasons:

  • It helps promote muscle growth and recovery.
  • It supports healthy skin, hair, and nails.
  • It helps reduce joint pain and inflammation.
  • It aids digestion and gut health.

When Should You Take Collagen During Intermittent Fasting?

Take collagen in the morning before your fast and at the break of fast. Here’s why: Collagen will help you feel full and sustain you for the rest of your fasting period. It also helps with muscle growth and recovery, which is important during fasting. Collagen can also reduce joint pain and inflammation, which can be beneficial if you’re exercising during a fast.

Can You Have Collagen During Intermittent Fasting?

Technically yes, but not all collagen supplements will do the trick. Collagen brands such as Vital Proteins, Ancient Nutrition, and Further Food offer low-calorie collagen peptide powders, which are ideal for intermittent fasting. Collagen powders are easy to incorporate into your daily routine, with no extra prep or cooking required.


Collagen peptides can be consumed during intermittent fasting, as long as they are low-calorie supplements. Collagen can help you feel full and sustain you during a fast, as well as support muscle growth and recovery. To reap the benefits of collagen during IF, choose a low-calorie collagen peptide supplement such as Vital Proteins, Ancient Nutrition, or Further Food.

Would it be permissible for me to consume collagen peptides while engaging in intermittent fasting?

Research has demonstrated that consuming a small amount of collagen peptides does not have a significant effect on producing ketones, meaning that if you are looking to achieve metabolic flexibility and fat loss through intermittent fasting, you can still consume collagen while fasting.

At what point during an intermittent fasting period should I consume collagen?

Taking collagen in the morning before your fast and at the break of fast can be beneficial for several reasons. It can help you feel full and provide sustained energy throughout the day. Additionally, collagen is keto-friendly, so you can remain in ketosis while fasting. Finally, collagen won’t cause bloating.

Does intermittent fasting affect collagen levels?

Any item that contains calories, including collagen, will cause a fast to be broken.

Is it okay to add collagen to my coffee while I’m fasting intermittently?

You can still enjoy the benefits of fasting by adding a scoop of collagen to your coffee or tea. Unflavored and unsweetened marine collagen is a great choice and it won’t ruin the fast. It contains about 35 calories per 10g serving, so it can help you feel full and energized.

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does collagen peptide break intermittent fasting 17 04 2023 2

If you are interested in learning more about intermittent fasting and how to incorporate it into your lifestyle, check out Fasting Books. Fasting Books is a comprehensive resource that provides information on the science, benefits, and different methods of fasting. Start your fasting journey today by visiting
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