What is the link between psoriatic arthritis and gluten?

Psoriatic arthritis (PsA) causes painful, swollen joints. In people with celiac disease (CD), eating gluten can trigger diarrhea and other digestive symptoms

Gluten Intolerance: Signs and Symptoms

With gluten intolerance, the reaction to eating gluten is not the same as with celiac disease, but symptoms are similar. Learn more about the signs here.