I had blood tests done several years ago (can't remember the lab), and that first showed the gluten intolerance, among other things. Actually on a list of 99 foods tested, I had some sensitivity to all but one! Again promoting my theory that I'm allergic to everything.
Blood tests aren't the most reliable, however. My latest tests are through a company called Diagnostechs: http://www.diagnostechs.com
Many people swear by the testing done by Enterolab ( http://www.enterolab.com/ ), especially for gluten and dairy allergy. I am interested in having that test as well, depending on what Diagnostechs shows. The doc recommended going with Diagnostechs first, as they are particularly good with various bacterial/parasitic problems.
You'll notice with Enterolab that you can do the tests without a doctor's order, though a doctor's order may help you get insurance reimbursement.
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Re: Still no diagnosis, still sick and getting worse -- help! (long post)
