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Impact of Consuming a Plant-based Enriched Meal on the Adult Gut Microbiome

Not Applicable
Completed
Conditions
Healthy
Interventions
Dietary Supplement: oat based porridge
Dietary Supplement: plant based preparation
Registration Number
NCT05459662
Lead Sponsor
Société des Produits Nestlé (SPN)
Brief Summary

The aim of this study is to evaluate the impact of a diversified plant-based meal on the gut microbiome and its composition.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
26
Inclusion Criteria
  • Age 18-55 years,
  • Healthy participants, both male and female,
  • BMI in the normal and overweight range 18.5 ≤ BMI ≤ 29.9 kg/m2,
  • Able to understand and to sign a written informed consent prior to study enrolment.
Exclusion Criteria
  • Known chronic diseases or conditions for which the investigators/investigation team deem as not suitable for study participation,
  • Known food allergy and intolerance e.g. lactose intolerance, nuts allergy,
  • Habitually, have < 5 spontaneous bowel movements on average per week,
  • Chronic or recurrent diarrhoea with spontaneous bowel movements > 2 per day
  • Prior gastrointestinal surgery (apart from appendectomy or herniotomy),
  • Received systemic antiviral/antibacterial/antifungal therapy during the 3 months prior to study enrolment,
  • Medications or supplements that are known to alter gut function or microflora i.e. acid antisecretory drugs, pre-/probiotics, laxative during the 4 weeks prior to study enrolment,
  • Anti-hyperlipidaemic, antihypertensive medications and/or anticoagulant agents,
  • Currently participating in another interventional clinical trial or research project,
  • Alcohol intake > 2 servings per day; specifically, a serving is 0.4 dl of strong alcohols, 1 dl of red or white wine, or 3 dl of beer. Or other chronic substance abuse,
  • Changing diet patterns due to travelling and staying abroad for more than two weeks (Asia, Africa, or Latin America) during the two months prior to study enrolment,
  • Food restrictions such as vegan, vegetarian, ketogenic, low carb, paleo, raw diets, caloric restrictive diets,
  • Artificially sweetened beverage intake >1000 ml/ per day,
  • Female participants will be excluded if they are pregnant, have given birth in the last 6 months, or are lactating,
  • Subject having a hierarchical or family link with the research team members,
  • Occurrence of fever episodes, infection, or vaccination during 14 days before the start of the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Oat based porridgeoat based porridgeOat based porridge prepared with 64g of oat, 200ml of milk and 10 g of honey by the participant and consumed orally daily for 14 days as breakfast replacement
Enriched plant-based mealplant based preparationEnriched plant-based meal pots (400 g) mixed with 25g of seeds and nuts consumed orally daily for 14 days as breakfast replacement
Primary Outcome Measures
NameTimeMethod
Microbiota diversity & compositionThroughout 14 days of product intake

Measured by Next Generation Sequencing (NGS)

Secondary Outcome Measures
NameTimeMethod
Change in Short Chain Fatty Acids (SCFA) in the stoolThroughout 14 days of product intake

Measured using Gas Chromatography (GC)

Gastrointestinal Symptom Rating Scale (GSRS)Throughout 14 days of product intake

Validated questionnaire exploring the presence and severity of GI symptoms over the previous 7 days. The GSRS is a disease-specific instrument of 15 items combined into five symptom clusters depicting reflux, abdominal pain, indigestion, diarrhea and constipation. The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms. The effect of the interventions on the GSRS will be assessed by a linear mixed model and will take into account information on this from all 7 days of treatment.

Change in quality of life using SF-36 questionnaire (Short Form 36 Health Survey)Throughout 14 days of product intake

SF-36 is a set of generic, coherent, and easily administered quality-of-life measures. These measures rely upon patient self-reporting and are now widely utilized by managed care organizations and by Medicare for routine monitoring and assessment of care outcomes in adult patients. Score ranging from 0 to 100 (higher scores indicate better health status).

Trial Locations

Locations (1)

Clinical Innovation Lab

🇨🇭

Lausanne, Vaud, Switzerland

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