Fasting During Chemo (with an ostomy)?

Posted by pjebp @pjebp, Dec 18, 2021

Fasting During Chemo! I've done some reading on it so I know what it can do. Would you please share with me the details of what YOU did and how it worked for YOU?

I am especially interested in hearing from people who fasted during chemo with an ILEOSTOMY! I had my second chemo yesterday. First I received infused anti-nausea medication. Next I received steroids. On the second session I also received Avastin for one recently discovered biopsied liver metastasis. Then I received oxaliplatin for about 90 minutes, then a bolus of 5FU and then go home with a pump for 48 hours.

I am icing also. Other than being a little tired and groggy on and off in the days following my first session and a little bit of pain in my jaw on the first bite, I had no other side effects from the chemo. Thank you!

Interested in more discussions like this? Go to the Colorectal Cancer group.

@pjebp you will notice that I have included this discussion in both the Colorectal Cancer Group as well as the LCHF Fasting Group so you can more simply manage one discussion and so that other members can just as easily find it and join you!

Where did you learn about this and what resources might you consider sharing for members who may want to learn more?


Hello @pjebp

Your question is interesting about fasting and chemotherapy. I did a little online research and found some studies. Unfortunately, the studies I found were all dated 2018, therefore not particularly current. Here are the links.
In addition to these studies/clinical trials, here is a link to an article from Cure Today, a free magazine with information about cancer.
Changing any aspect of nutrition should, of course, be discussed with your oncologist. Have you talked with him/her about fasting?

As Amanda, @amandajro said I would also be interested in hearing where you learned about this. If you know of more recent research, would you please post that?


I was wondering if you are doing oral icing only or are you icing hands and feet?


@pjebp, I also added your question to the Ostomy group. Did you fast before starting chemo? Is fasting intermittently a normal habit for you? If yes, what is your typical fasting routine?

@jre, a new member, is also interested in learning more about your experiences with icing. I hope you'll share more about the icing technique and what it is like.

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