Can Diet Help Improve Psoriasis Symptoms?

Psoriasis is an auto-immune disorder that results in patches of red and scaly skin, among other symptoms. Currently, there is no cure for it, only ways to help manage it. A recent study may have revealed a new way to treat psoriasis through diet.
The study examined the diets of over 3,500 people with psoriasis.  Individual diets were compared to the Mediterranean diet which consists mainly of fresh fruits, vegetables, and healthy fats and has been described as heart healthy. The psoriasis patients were divided into three groups. One group had a diet close to the standards of the Mediterranean diet, one group had a diet that did not match at all, and another group was in the middle.
The group whose diet was the least like the Mediterranean diet had the most severe psoriasis symptoms.  The other two groups were less likely to have severe psoriasis symptoms.
The study does not prove cause and effect but does show a potential correlation. Further studies are needed to see if the results can be replicated and to examine what exactly is causing the difference in symptom severity.
Source: Phan, Céline, et al. “Association Between Mediterranean Anti-Inflammatory Dietary Profile and Severity of Psoriasis.” JAMA Internal Medicine, American Medical Association, 25 July 2018, jamanetwork.com/journals/jamadermatology/fullarticle/2687981.