In July 2019 researchers from the USA published the results of their study to assess the relationship between psoriasis and a combination of factors that included dietary habits, oral health, and oral hygiene practices. A total of 265 individuals with psoriasis were included in the study. Information was collected via a specially designed questionnaire. Results showed age, family history of psoriasis, previous diagnosis of strep throat or rheumatoid arthritis, and oral pain or discomfort experienced within the last 12 months were all found to be significant predictors of psoriasis. In addition, a higher BMI, poor gum health, and speech difficulties related to dental problems were all linked with more severe symptoms of psoriasis. However, individuals who reported consuming fresh fruit at least once a day appeared to experience milder symptoms.
Macklis P et al. The impacts of oral health symptoms, hygiene, and diet on the development and severity of psoriasis. Dermatol Online J. 2019 Jul 15;25(7). pii: 13030/qt85z4t7hq.