A May 2021 study by Ghent University, Belgium said,

"We had observed positive results in mice with gut inflammation and psoriasis, with inflammation in the gut driving cutaneous symptoms," 

"Through scientific curiosity and my own experience with fasting as a Muslim, I wanted to find out whether dietary intervention would have the same effects on human patients with psoriasis.”

"The effect of dietary interventions on skin health is a stimulating field of research in dermatology. The results of this study add to the growing body of evidence being undertaken to understand the relationship between the gut and skin, with some promising results for patients and the disease management of psoriasis." Said University Hospital of La Timone, Marseille.