RecruitingNot ApplicableNCT05473793

Impact of a Dried Vegetable on Bowel Function and Gut Microbiota

The Impact of a Dried Vegetable on Bowel Function and Gut Microbiota in Subjects With Bowel Function Issues


Sponsor

Wageningen University

Enrollment

160 participants

Start Date

Aug 22, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

A randomized, placebo-controlled, parallel, double-blind trial with three intervention arms and a period of four intervention-weeks that assesses the intake of different dosages of a complex fiber product on bowel function via microbiota changes in subjects that are unsatisfied with their current bowel function.


Eligibility

Min Age: 20 YearsMax Age: 80 Years

Inclusion Criteria5

  • - 80 years old
  • Unsatisfied with bowel functions (self-reported), rated on a visual analogue scale (VAS, 0-10) as less than 6
  • Four or less bowel movements per week (low stool frequency) and/or
  • Hard, lumpy or solid stools (Bristol stool form 1-4) during 90% of bowel movements (hard to solid consistency)
  • Able to read and understand Dutch or English

Exclusion Criteria19

  • Having a history of medical or surgical events that may significantly affect the study outcome: e.g., IBS or IBD patients and subjects with medically diagnosed constipation (i.e., constipation related to anatomic, medication-related, or readily identifiable physiological causes.)
  • Less than one bowel movement per week during the screening
  • Medical drug use:
  • Antibiotic use within 3 months of the study screenings day
  • Chronic use of antacids and PPI's
  • Use of laxatives during the screening
  • Chronic use of blood glucose lowering medication
  • Consumption of supplements containing fibres (other than laxatives), pro-/ post-/ synbiotics 1 month before the screening
  • Not willing to provide faecal samples
  • Unable to comply with proper study procedures
  • For women of childbearing age: current or planned pregnancy, lactation
  • Known allergic reactions to plants from the Asteraceae (Compositae) family (e.g., lettuce, daisies, sunflowers, artichokes, sage, tarragon, chamomile, chicory etc.)
  • Reported unexplained weight loss or weight gain of greater than 5 kg in the month prior to pre-study screening
  • Reported slimming or medically prescribed diet
  • Reported macrobiotic lifestyle
  • Personnel the Division of Human Nutrition \& Health or the Laboratory of Microbiology
  • Current participation in other medical scientific research
  • Not having a general practitioner
  • Not willing to be informed about accidental discoveries in relation to the subjects health

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Interventions

DIETARY_SUPPLEMENTDried chicory root particles

The intervention product consists of chicory root that have been sliced and dried and are provided in the form of particles (\~3mm).

OTHERPlacebo

The control arm receives a placebo consisting of rice puff particles.


Locations(1)

Wageningen University & Research, Division of Human Nutrition & Health

Wageningen, Gelderland, Netherlands

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NCT05473793