EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something to add.
Yes—IBS is a good example of something that’s likely a constellation of different disorders (aka why it’s a “Syndrome”). There’s some promising preliminary data that a lot of IBS may actually relate back to the insecticides that are used on commercial crops (hence one of the reasons why people get relief from going “gluten free”—it may have less to do with the gluten and more to do with the chemicals on the wheat itself). Stay tuned for more.