Psoriasis and Diet: Mediterranean Diet, Weight Loss, Gluten-Free Approaches, and Patient Counseling

The talk reviews how diet and lifestyle can support psoriasis care, emphasizing that many patients actively seek dietary advice despite limited high-quality evidence. The speaker discusses a representative patient whose skin improved on secukinumab, then turns to counseling about nutrition, weight, and gluten. The Mediterranean diet is highlighted as the best-supported dietary pattern: it stresses fruits, vegetables, whole grains, fiber, healthy fats like olive oil, and less processed food, red meat, and alcohol. Early observational data linked better adherence to lower psoriasis severity, and a small randomized trial in 2025 found improved psoriasis severity with a Mediterranean diet even without significant weight loss, suggesting anti-inflammatory benefits. Weight management is also important because obesity is more common in psoriasis, may worsen disease, and can reduce treatment response in some patients; a meta-analysis showed weight-loss interventions improved psoriasis severity and quality of life, and the National Psoriasis Foundation recommends weight reduction in overweight or obese patients. The speaker also notes emerging interest in GLP-1 therapies, with early studies suggesting possible benefits beyond weight loss. Regarding gluten, the key message is that gluten-free diets are mainly appropriate for patients with confirmed celiac disease or positive serologic markers of gluten sensitivity; routine screening is not recommended for everyone. The speaker closes with a practical counseling approach: check BMI, provide Mediterranean diet guidance, refer to dietitians or primary care, encourage calorie tracking and healthy plates, avoid extreme elimination diets that can increase stress, and frame diet as one part of holistic psoriasis care.