Editorial: obesity and chronic diarrhoea—A Hill of evidence for causation?

Ballou et al recently reported in a large cross-sectional study that obesity is associated with a significantly increased risk of chronic diarrhoea.1 Examining over 5000 US National Health and Nutrition Examination Survey (NHANES) respondents, the 38.5% of participants who were obese or severely obese were more than twice as likely to have chronic diarrhoea, a finding that persisted after statistically controlling for important confounders,...