Intermittent Fasting on Weekends: Should You Take a Break?

Fasting over the weekend doesn't have to derail your progress — but there are a few things worth knowing before you take a break.

Graphic asking if it's bad to stop fasting on weekends with healthy keto breakfast plate in background

Key Takeaways

  • It is generally okay to stop fasting over the weekend as long as you continue making healthy food choices.
  • The weekend break becomes more complicated if you combine fasting with a ketogenic diet.
  • Increasing carbohydrate intake over the weekend can take your body out of ketosis.
  • Re-establishing nutritional ketosis after a break can take several days depending on carb intake, activity levels, and individual metabolism.
  • Fasting five days a week can be a sustainable approach as long as weekends are not used to undo weekday progress.

Fasting is one of the most popular ways to lose weight and improve your health.

Rather than telling you what you can and can't eat, fasting only restricts the hours you're allowed to eat. This makes fasting much easier to follow than a lot of other diets out there.

However, a lot of people wonder if taking a break from fasting over the weekend will affect the progress they made during the week?

This article helps explain whether or not it's bad to stop fasting over the weekend.

Is It Bad to Stop Fasting Over the Weekend?

Let's face it; fasting is easier during the week.

During the week, we usually have a set routine for when we wake up, go to work, pick up or drop off the kids (if you have them), and so on. However, when the weekend comes around, a lot of us throw the routine out the window. The weekends give us time to sleep in and spend time with our bubble.

That's why a lot of people wonder if it's okay to stop fasting over the weekend?

In short, it's okay to stop fasting over the weekend—as long as you don't let yourself go.

That means you should still make a conscious effort to make good food choices and eat healthier. However, you don't need to worry as much about when you should be eating or not.

The one exception to this is if you usually combine fasting with keto.

Keto is a popular high-fat, very-low-carb diet that limits your carb intake to 20–50 grams per day. This way, your body switches from using carbs as energy to ketone bodies (fats).

If you stop both fasting and keto over the weekend, your body will switch back to using carbohydrates as its primary fuel source. Once this happens, it can take several days of returning to a ketogenic diet before nutritional ketosis is re-established, depending on factors such as carbohydrate intake, activity levels, and individual metabolism. While ketones can be produced relatively quickly under the right conditions, full adaptation to ketosis may take longer.

If you find that fasting five days a week works better for you and your lifestyle, then it's absolutely fine to do so. Just make sure to continue making healthy food choices and avoid using the weekends as an excuse to undo the progress you've made during the week.

Summary

It's okay to stop fasting over the weekend as long as you continue to make healthy choices. The main consideration is if you're combining fasting with a ketogenic diet, as increasing your carbohydrate intake may take you out of ketosis and require time to re-establish it.

Calocurb

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Calocurb

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References

  1. Scott, J. M., Deuster, P. A., O'Connor, F. G., & Campbell, W. W. (2019). Ketones and human performance. Journal of Special Operations Medicine, 19(1), 65–72. https://pubmed.ncbi.nlm.nih.gov/28599043/
  2. Harvey, C. J. D. C., Schofield, G. M., Zinn, C., Thornley, S. J., Crofts, C., & Merien, F. (2018). The effect of medium chain triglycerides on time to nutritional ketosis and symptoms of keto-induction in healthy adults: A randomised controlled clinical trial. Journal of Nutrition and Metabolism, 2018, Article 2630565. https://pubmed.ncbi.nlm.nih.gov/29951312/
  3. Harvey, C. J. D. C., Schofield, G. M., Williden, M., McQuillan, J. A., & Langton, J. E. (2018). The use of nutritional supplements to induce ketosis and reduce symptoms associated with keto-induction: A narrative review. PeerJ, 6, e4488. https://doi.org/10.7717/peerj.4488