[boplicity]

The problem with those studies is that a Gluten free or a gluten and dairy free diet is not enough to actually treat "leaky gut" or similar issues. It's a bit like saying you can fix an ecosystem by removing two invasive species from the environment. Sure, it might work, but it's such an oversimplification that the results will appear random, or, "inconclusive."

Studying diets is notoriously difficult, and rarely done in a helpful way. Everybody has a different internal ecosystem -- as well as different dietary stimulus, even if they're following the same diet. This makes it incredibly difficult to draw broad conclusions based on controlling just one or two dietary factors.

This is rather unfortunate -- because the right dietary treatments can be truly transformative for many people, for a variety of conditions. However, because of the difficulty of proving this scientifically, such treatments are ignored by the medical community, leaving patients to figure this avenue of treatment out on their own.

The answer, in my opinion, is massive funding -- the kind of funding that can compete with billion dollar drugs (such as Humira). However, that's really not going to happen. Oh well. Sorry for the rant!