Although until very recently, it was thought that gluten-intolerance without a positive test for celiac disease was on the low end of the sensitivity spectrum, it has been shown that gluten intolerance and celiac disease are two separate conditions (though gluten intolerance is also probably an autoimmune condition). Gluten intolerance doesn't cause the degradation of the intestinal lining like celiac disease, but still causes many of the same symptoms including fatigue, aches and pains and neurological problems. Here is the article from the Wall Street Journal that talks about the recent study. http://online.wsj.com/article/SB10001424052748704893604576200393522 456636.html Also, it should be noted that celiac disease blood tests will be inaccurate if the patient is IgA deficient (very common), and that the test itself has a much lower sensitivity than previously thought (about 90%, meaning there will be a false-negative in 10% of the population.View Thread
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