“We don’t know any (other) mechanism by which gluten could hurt them, hence their lived experience is invalid.”
I _suspect_ gluten can contribute to my brain fog. The problem is, there are so many variables it is next to impossible to change only one in daily life. In fact, when you dig into it, so much literature is just trash as experiments don’t control for all variables.
Hence, I don’t claim that it does. But pasta reliably makes me a zombie and something like potato doesn’t, so glucose can’t be the mechanism.
Body is a complex system and pretending we understand it is hurting people.