does intermittent fasting cause diarrhea

Does Intermittent Fasting Cause Diarrhea?

Andrew Brewer - Intermittent Fasting Expert

Written by Andrew Brewer. Updated on September 2022.

Medically reviewed and fact checked by our team.

does intermittent fasting cause diarrhea

As you start your intermittent fasting journey, your body will undergo a series of changes. You’ll feel hungry, but your body will adjust to your new eating habits over time. In some cases, you may face indigestion, including bloating, gas, and diarrhea. It’s rare, but it does happen, so here’s what you can do if you get diarrhea during intermittent fasting.

What Causes Diarrhea during Intermittent Fasting?

Diarrhea can lead to dehydration, so you must address the problem quickly if you start to come down with it during intermittent fasting. You can get diarrhea when you break your fast or while you’re fasting for different reasons.

If you come down with diarrhea after eating, your body is likely reacting to the food you’ve chosen. High-fat meals can cause diarrhea because your body may not be able to digest them like it used to. Eating too much too fast can also trigger a response in your body to purge. Overall, it’s important to be aware of how you’re breaking your fast to prevent getting sick. You may feel like you’re starving, but your body needs time to readjust to the nutrients you’re feeding it after an intermittent fast.

If you’re feeling sick during a fast, consider what you are drinking. You may be drinking too much caffeine or using too many zero-calorie sweeteners. Even an excess of electrolytes can cause diarrhea during a fast, so it’s not always about what you’re eating that can cause your body to go out of whack. As you fast, your body is purging everything left in it, which may lead to diarrhea at first.

Overall, being mindful of what you’re eating and drinking during and after intermittent fasting can impact how your body reacts. If you feel sick, it’s important to drink a lot of water and fluids to prevent getting dehydrated. While a single bout of diarrhea is unlikely to cause health problems, long-term digestive issues can lead to more serious issues.

How to Treat Diarrhea During Intermittent Fasting

In addition to drinking a lot of water, you may want to consider adding probiotics to your diet. This can be through foods or supplements, and they can help restore balance to your stomach and GI tract by introducing more good bacteria into your system. Most probiotics have zero calories, so they won’t break your fast. Instead, they’ll help you start feeling better if you’re suffering from stomach issues like diarrhea, constipation, gas, and bloating.

Introducing more fiber can also help prevent diarrhea, helping food run more smoothly through your system. What you eat is just as important as when you eat, so increasing the protein, fiber, and healthy fats can lead to healthy bowel movements, while fatty, greasy, and oily foods can do the opposite.

Lastly, you may want to stay away from the caffeine, including coffee, tea, and energy drinks, even if they have zero calories, until you get your diarrhea under control. Excess caffeine and sweeteners can cause diarrhea if consumed too quickly during intermittent fasts because your body has nothing else to help soak it up.

Is Diarrhea a Guarantee During Intermittent Fasting?

No, diarrhea is not a common side effect of intermittent fasting. Instead, it’s likely a result of what you’re putting into your body during fasts and while eating. Be mindful of eating too much too fast after breaking your fast, integrating high fiber, protein-rich foods rather than fat-filled and greasy meals – no matter how much your body has been craving it! Doing so after an intermittent fast will only cause your body to go into shock, including developing diarrhea.

Don’t forget to check our recommended fasting apps to make your intermittent fasting journey easier.

Andrew Brewer

Andrew Brewer

Andrew Brewer started Fastingapps.com to give people the guidance that he never received when he was first starting. His goal is to make your goals achievable and to offer you only the best fasting apps that the internet has to offer. You're not on your own - Andrew and the entire family of reviewers at Fastingapps.com are here with you every step of the way!

Leave a Reply