Trial Parameters
Brief Summary
The link between what people eat and how it affects faecal output (poo) has been understudied. Most of the research that has looked at the link between diet, bowel movements and overall health has studied different types of fibre extracted from foods (e.g., fibre extracted from carrots), rather than foods in the form that they are consumed. It is necessary for scientists to investigate the relationship between food as people usual eat it (e.g., a carrot) and bowel movements, as this information is key to understanding the relationship between what people eat and overall health. The investigators would like to understand the relationship between intake of certain foods and faecal output. This will help to develop a chart, similar to the United Kingdom National Health Service urine colour hydration chart. The chart will allow people to know, by looking at their poo, whether they are eating enough of the foods that will keep them healthy. By monitoring and measuring participants' bowel movements, and providing information about diet, participants will provide the data we need for this research.
Eligibility Criteria
Inclusion Criteria: * Age: 18-60 years. * Healthy as determined from self-reported medical history or when no relevant medical condition exists. * Stool frequency of 3 to 21 times per week. * Able to attend a session in person at City Campus or Headingley Campus, Leeds Beckett University, or City Campus, Sheffield Hallam University. * For women: Use of contraceptive methods or not planning to become pregnant for the duration of the study. * Able to understand and be willing to sign the informed consent form, and to follow all the study procedures and requirements. Exclusion Criteria: * Food allergy or intolerance * Currently dieting to lose weight * For women: Pregnancy, lactation * Bowel disease * Use of medicine causing constipation * Abnormal gastro-intestinal (gut) function or structure such as malformation, angiodysplasia or active peptic ulcer * History of gastro-intestinal surgery with permanent effect (e.g., surgical treatment of obesity) * Active inflammatory bowel disease, co