Dietary intake, mental status, physical activity, and lifestyle affecting bowel movement frequency and stool texture in young Japanese women

Constipation is a symptom-based disorder, and its definition is mainly subjective. Patients are more concerned with ease of passage and consistency rather than frequency of bowel movement. Studies on bowel movement frequency and stool texture in the general population are sparse, especially in young women. In this cross-sectional study, data obtained from self-administered questionnaires, including age, height, body weight, lifestyle, food habits, anxiety, depressive status, frequency of bowel movements, stool texture, and defecation-related symptoms were analyzed in 245 female Japanese university students. An established semiquantitative questionnaire available for clinical investigation (FFQg) was used to obtain a detailed assessment of food intake and physical activity levels. Of the participants, 21.4% had bowel movements ≤3 times per week and 33.3% had hard or lumpy stools ≥25% and loose (mushy) or watery stools