Shen L, et al. - In a large adult population, researchers explored connections between fibre and water intake and constipation, as well as other possible risk factors for constipation. This cross-sectional population-based study included data from 14,024 individuals aged ≥ 20 years from three cycles of the National Health and Nutrition Examination Survey (NHANES) 2005–2010, who had finished a bowel health questionnaire. To determine connections between potential risk factors and constipation, logistic regression analyses were performed. According to multivariate analysis, black race/ethnicity, a lower than 12th grade education or high school education, lower-income/poverty ratios, normal weight or overweight, depression and poor teeth were linked to an increased risk for constipation. In univariate analysis, total water consumption was associated significantly with an increased risk of constipation, but not in multivariate analysis. Overall, the authors concluded that lower intake of dietary fibre, but not poor consumption of water, was correlated with an increased danger of constipation in adolescents in the US.