This is a comment rather than a question. Since so many people have parasites and they can cause leaky gut syndrome (if I understand correctly) and leaky gut can cause reactions to food proteins, I tried Grapefruit seed extract (GSE) in a formula with artemisia and echinacea. I am feeling GREAT and my digestion is really good. I am continuing to avoid gluten religiously as well as nuts and dairy less stringently, and I feel GREAT with much improved digestion and energy. I am suspecting I had ascaris. Apparently they can even cause stones in the gallbladder, and I had to have that out a couple of years ago. I think we need to stop ignoring the possibility of parasite infection. It is highly treatable.
http://www.rightdiagnosis.com/a/ascariasis/symptoms.htm
http://www.4optimallife.com/Liver-Cleanse-And-Detoxification-Procedures.html
http://www.doctoroz.com/blog/susan-evans-md/parasites