Psoriasis: Diet and Lifestyle Modulate It and Improve Drug Response, But Do Not Cure It

Summary

Psoriasis is a systemic immune-mediated disease running on the IL-23/IL-17 axis, and the honest read is two-sided at once: lifestyle genuinely modulates it — losing excess weight is the single strongest and most guideline-endorsed lever, it lowers severity AND improves how well biologics work, while stopping smoking and moderating alcohol help and a Mediterranean pattern plus omega-3 give modest, inconsistent benefit — AND it is **not curable by diet, supplements, or "gut healing,"** because moderate-to-severe disease is transformed only by systemic therapy where IL-23 inhibitors clear three-q