Stimulating Fiber Intake Via Personalized Dietary Advice

Exclusion Criteria

• •Relatively low fiber intake: which is assessed by a short fiber intake screening questionnaire (score ranging from
• •1 to 22). Females with a score ≤13 and males with a score ≤15 will be included in the study.
• •Living in the surroundings of Wageningen (max. 50 km).
• •In possession of a mobile phone with android ≥4.4 or iOS system ≥9 to use apps.
• •Signed informed consent.
• •Any digestive tract disorder that is expected to interfere with the study outcomes, such as chronic constipation or diarrhea, Crohn's Disease, Ulcerative Colitis, Irritable Bowel Syndrome, Coeliac disease.
• •Diagnosis of Diabetes Mellitus, since the change in carbohydrate intake may interfere with medication usage.
• •Currently following a strict diet and unwilling or unable to change; for example a gluten free diet or a "crash diet" using meal substitutes.
• •Use of medication that can interfere with the study outcomes, including laxatives, diuretics, antidepressants, codeine, antibiotics or fiber supplements
• •Female subjects: currently pregnant or breastfeeding, or intending to become pregnant during the study, as this can affect stool patterns and well-being.
• •Simultaneously participating in another study.
• •Unwilling or unable to fulfill the study criteria.