[enziobodoni]

It is devilishly difficult to separate correlation and causation. This difficulty has to be the reason why some forms of "medicine" persist, ie naturopathy will have to work sometime, just as a stopped watch is right twice a day. I would never be so foolish as to discount your story, however, without knowing the actual facts, and without acknowledging that some people do, in fact, have food allergies, celiac sprue, etc... The problem is that not nearly as many people actually have these things as they might believe. And, combined with the STRONG financial motivation for folks to exploit the sufferings of others like yourself, my point is just hat its devilishly hard to make sense of anything.

[zenkat]

Double-blind experiments are a great way to separate correlation and causation. See my (@zenkat's) wife's story above. Every so often, she accidentally and unknowingly eats foods she is sensitive to, and exhibits symptoms shortly afterwards. We go back and check the label and ... yep, there's the dairy/soy/yeast extract.

Oh, and there's no financially motivated third-parties here. We've done all this testing, elimination, and observation on our own.

[enziobodoni]

That's not a double blind experiment, but I'd agree it points to an intolerance. Actual experiments, I will reiterate, are hard to do. Have you tried feeding your wife food devoid of known triggers but told her they were in the food? I would hope not, because it's not an ethical thing to do, but you need that sort of thing to nail it down. Also, since she seems to accidentally eat food of unknown provenance, can you be sure the times she's gotten away with it without symptoms that the food in question was truly devoid of triggers? In others words, it is very very easy to confirm that things are bad for you, correctly or not.

[xorcist]

That's not a double blind experiment. I don't even know how to qualify it unless you at least have some data on how often those things the unknowingly eats that contains whatever she is sensitive against does not exhibit any reactions in her.

[enziobodoni]

I think I might have missed what I meant to say. Can we be sure that is wasn't a self-limited condition that resolved at he same time as the dietary changes, but not because of them? That kind of thing happens a lot. People get over strep throat without penicillin, after all.