A new study published in JAMA Dermatology has revealed a strong link between the consumption of ultra-processed foods (UPFs) and active psoriasis symptoms. Based on self-reported dietary habits and psoriasis data, the research underscores the potential role of UPFs in exacerbating this chronic inflammatory skin condition.

The findings were derived from the NutriNet-Santé cohort study conducted in France between 2021 and 2022. The study analyzed data from 18,528 participants aged 62 to 70, of whom 74% were women and 26% were men. Researchers observed a significant association between a high intake of UPFs and the presence of active psoriasis symptoms, even after accounting for confounding factors such as age, body mass index (BMI), alcohol consumption, and comorbidities.

Interestingly, this association was not evident in cases where psoriasis diagnoses were confirmed by dermatologists, suggesting the need for further investigation. Nonetheless, the study emphasizes that UPFs may contribute a distinct pro-inflammatory effect on psoriasis symptoms, separate from the known inflammatory impact of high BMI.

Ultra-processed foods have become a staple in modern diets, often prioritized for their affordability and convenience over nutritional value. These foods are typically rich in oils, fats, sugars, and artificial additives like modified starch, hydrogenated fats, food coloring, and flavor enhancers. Common examples include processed meats such as sausages, sweetened beverages, sugary yogurts, sodas, hamburgers, and breakfast bars.

The study’s findings highlight the potential benefits of reducing UPF consumption for individuals living with psoriasis, emphasizing the importance of dietary choices in managing this condition effectively.