Nutrition Bulletin
Plant‐Based Diet and Sleep Quality in Adults: Exploring the Role of Lifestyle and Health Mediators
ABSTRACT This study investigated the association between plant‐based dietary indices (PDI) and sleep quality and examined the mediating roles of lifestyle and health‐related factors. A total of 5260 participants (18–65 years) were included. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). PDI—including overall (oPDI), healthy (hPDI), unhealthy (uPDI), and pro‐vegetarian diet index (PVDI)—was derived from a food frequency questionnaire covering 15 food groups. Associations between each PDI …