Putting it simply.....No, not eating until you waste away would not fix Increased Digestive Permeability. Commonly recommended supplements such as Glutamine will also not fix IDP.

IDP is caused by an infection which is protected by a biofilm. It is the biofilm which causes the IDP and not what is commonly believed to be involved. Destroying the infection at the primary infection point allows the digestive system in multiple places, both the point of infection and also usually the colon, typically the transverse colon to heal. The infection prevents the digestive system from healing and it also presents the normal production of digestive mucosa.

You might find that not eating could lessen the effects of IDP such as immune system reaction and autoimmunity.

Whatever time you can take off, seems to help.

Studies are are showing that with mice any way that any time away from food seems to aid lots of bodily functions and healing; a window of eating is the idea, there, such that 4 hours of fasting is good, 8 is better, 12 better, yet, and 15 per day almost as good as other forms of calorie restriction and fasting.

I would guess that you will do yourself quite a bit of good, just by narrowing the window during which you eat, with General fasting being better, and improving your diet when you do eat, in tandem with the other, likely having a really good effect towards improved health.

Text me back. We are dealing with the same thing I've been doing this for a year I be able to help

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https://trulyheal.com/ozone/ozone-therapy-for-leaky-gut-ibs-chrons-ulcerative-colitis/

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Best to you,
Grizz