Constipation - Functional
Conditions
Keywords
adults, functional constipation, inulin-type fructans
Brief summary
Constipation is common in the general population, especially in women and in the elderly, which can significantly affect quality of life of the individual. There is a general consumer trend to seek natural food options, also when addressing health issues such as constipation. Consumers seek tasty options and there is a paucity of tasty functional foods to address constipation. Adding natural fiber to food, like inulin-type fructans from chicory root fiber, can increase fiber intake and potentially prevent or resolve constipation issues. This study aimed to increase the body of scientific data on inulin-type fructans by way of a randomized, placebo-controlled, cross-over study. Maltodextrin was used as the placebo in this study.
Interventions
Dietary supplement: chicory inulin-type fructan
Sponsors
Study design
Masking description
Subjects were blinded to the study treatment that they received
Intervention model description
This was a randomized, double-blind, placebo-controlled, cross-over study to evaluate the effects of chicory inulin-type fructans in adults with functional constipation.
Eligibility
Inclusion criteria
* Able to give written informed consent * Between 18 and 75 years of age * Have functional constipation according to the Rome III Diagnostic Criteria * Subjects were to continue on their normal diet and agreed to not take probiotic or prebiotic products/supplements and supplemental dietary fibres for the duration of the study * The subject agrees to complete the Patient Diary for two weeks prior to study entry and for the duration of the study * Subject is in general good health as determined by the investigator.
Exclusion criteria
* Subjects less than 18 and greater than 75 years of age * Females who are pregnant, lactating or wish to become pregnant during the study. * Subjects who are hypersensitive to any of the components of the test product, * Subjects who have an obstructive or metabolic aetiology for constipation, * Subjects who have a history of laxative abuse (greater than the daily dosage recommended on the label for any laxative), * Subjects currently taking supplemental dietary fibres or have taken them within two weeks of the screening visit, * Subjects who are taking a probiotic or prebiotic product/supplement or had taken them within two weeks of the screening visit
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in stool frequency | During the 12 week intervention period | Determine the impact of chicory inulin-type fructan on stool frequency in constipated subjects. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Patient Assessment of Constipation Symptoms | During the 12 week intervention period | Determine the effect of chicory inulin-type fructans on constipation symptoms using the Patient Assessment of Constipation Symptoms (PAC-SYM) questionnaire. |
| Quality of life using the PAC-QOL questionnaire | During the 12 week intervention period | Determine the effect of chicory inulin-type fructans on quality of life using the PAC-QOL questionnaire |
| Change in stool consistency | During the 12 week intervention period | Determine the effect of chicory inulin-type fructans on stool consistency in constipated subjects. |
| Resort to laxatives | During the 12 week intervention period | Determine the resort to laxatives of the subjects |
| Gut microbiota composition | During the 12 week intervention period | Determine the effect of chicory inulin-type fructans on gut microbiota composition |
| Physical activity | During the 12 week intervention period | Determine the physical activity of the subjects using the International Physical Activity Questionnaire (IPAQ) |