Psoriatic arthritis (PsA) causes painful, swollen joints. In people with celiac disease (CD), eating gluten can trigger diarrhea and other digestive symptoms. Research suggests that these two conditions often occur together and that following a gluten-free diet may relieve symptoms of both. Learn more here.
Psoriatic arthritis (PsA) occurs in people with psoriasis and causes painful inflammation of the joints. In people with celiac disease (CD), eating foods that contain gluten can trigger a range of digestive symptoms, including diarrhea, bloating, and abdominal pain.
In this article, we examine the link between gluten, CD, and PsA. We also look at PsA and CD in more detail and explain how to adopt a gluten-free diet.
Is there a link between gluten and PsA?
Studies have found a strong link between CD and psoriatic conditions. Research shows that people with psoriasis or PsA are more likely to have CD or symptoms of CD.
A 2011 Swedish study of people with CD found that 42 percent of psoriasis symptoms may be the result of the underlying CD. The researchers also found that children with CD had a higher risk of developing psoriasis.
According to a 2014 review, some research suggests that people with psoriatic conditions are more likely have CD antibodies, such as antigliadin antibodies, in their blood. These antibodies are commonly present in people with CD, and doctors sometimes use them to diagnose the condition.
The review also reported on other studies, which found that psoriasis symptoms were more severe in people with higher levels of CD antibodies in their blood.
The review authors concluded that a gluten-free diet might benefit some people with psoriasis, but they acknowledged the need for further studies.
While research indicates that there is likely to be a link between celiac disease and psoriatic conditions, the details of this relationship remain unclear.
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