Leaky Gut Syndrome

Good background article, though may lack crdible authority.

Since U.S. doctors seem largely ignorant or skeptical of leaky gut syndrome, some foreign sites appear helpful. England

L-Glutamine may help with leaky gut. It is needed in the body along with pyridoxal-5-phosphate ( the active form of vitamin B6) for proper assimilation.

Of general interest may be Doctors Data, a testing lab specializing in many valuble tests with lots of interesting things to read up on.