Why Do I Feel So Good on the Morning of My Colonoscopy? Exploring the Surprising Effects of Recommended Preparation

Many people report feeling surprisingly good on the morning of their colonoscopy, after following the recommended preparation procedures. This might seem counterintuitive, given that the preparation involves a strict diet and a complete bowel cleanse. However, there are several reasons why this might be the case, including the effects of fasting, the benefits of a clean bowel, and the reduction of anxiety. Let’s delve deeper into these factors.

The Effects of Fasting

Fasting, or abstaining from food for a certain period, has been linked to a number of health benefits. These include improved mental clarity, increased energy levels, and reduced inflammation. When you fast in preparation for a colonoscopy, your body switches to using stored fat for energy, which can lead to a feeling of increased vitality and well-being.

The Benefits of a Clean Bowel

Another factor that might contribute to feeling good on the morning of your colonoscopy is the effect of having a clean bowel. The process of cleaning out your bowel can remove waste and toxins that have been building up in your system. This can lead to a feeling of lightness and cleanliness, which can be very refreshing and invigorating.

Reduction of Anxiety

Finally, the process of preparing for a colonoscopy can also help to reduce anxiety. This is because the preparation process gives you a sense of control over the procedure. By following the recommended steps, you are actively participating in your own healthcare, which can help to alleviate feelings of fear and uncertainty. Additionally, the act of focusing on the preparation can serve as a distraction from worrying about the procedure itself.


In conclusion, there are several reasons why you might feel good on the morning of your colonoscopy. The effects of fasting, the benefits of a clean bowel, and the reduction of anxiety can all contribute to a sense of well-being. However, it’s important to remember that everyone’s experience is different, and what works for one person might not work for another. Always consult with your healthcare provider to ensure that you are preparing for your colonoscopy in a way that is safe and effective for you.


Is it normal to feel good after a bowel cleanse?

Yes, many people report feeling lighter and more energetic after a bowel cleanse. This is likely due to the removal of waste and toxins from the body.

Can fasting improve mental clarity?

Some research suggests that fasting can improve mental clarity and focus. However, more research is needed in this area, and the effects can vary from person to person.

Does preparing for a colonoscopy reduce anxiety?

For some people, the act of preparing for a colonoscopy can help to reduce anxiety by providing a sense of control and distraction from worry.