The BTD/GTD should definitely be recommended.
Now I have no idea if the following is "fact or fiction" but I read on the internet while searching for some information an "Ayurvedic remedy" for healing leaky gut is as follows:
A few hours after your last meal of the day take one tablespoon organic raisins and one tablespoon organic raw sesame seeds. Chew well.
That's it! (they said).