Fiber Blends and Gut Microbiota (FB)

NCT ID: NCT04101344

Last Updated: 2024-12-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

14 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-08-26

Study Completion Date

2020-06-01

Brief Summary

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The purpose of this research study is to determine whether consuming snacks containing different blends of dietary fibers alters the type and number of bacteria found in your gut and improves markers of overall health.

Detailed Description

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All subjects will complete a 47-day, multi-phase feeding study to evaluate the effect of two snack prototypes containing two different fiber blends on gut community structure and features of host biological state (plasma proteome/ metabolome). The information gained from this work will increase our understanding of the importance of specific dietary fibers in manipulating the composition of the gut microbiota in ways that may improve our metabolic health.

Conditions

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Gut Microbiome

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Fiber-blend

All participants will receive a two fiber-blend snack and then a four fiber-blend snack. Stool, blood, and urine will be monitored for changes throughout the study.

Group Type EXPERIMENTAL

Two fiber-blend snack and four fiber-blend snack

Intervention Type OTHER

All subjects will complete a 47-day, multi-phase feeding study to evaluate the effect of two snack prototypes containing two different fiber blends on gut community structure and features of host biological state (plasma proteome/ metabolome).

Interventions

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Two fiber-blend snack and four fiber-blend snack

All subjects will complete a 47-day, multi-phase feeding study to evaluate the effect of two snack prototypes containing two different fiber blends on gut community structure and features of host biological state (plasma proteome/ metabolome).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* BMI ≥25.0 and ≤35.0 kg/m2
* ≥18 and ≤60 years

Exclusion Criteria

* previous bariatric surgery
* significant organ system dysfunction (e.g., diabetes, severe pulmonary, kidney, liver or cardiovascular disease)
* cancer or cancer that has been in remission for \<5 years
* major psychiatric illness
* inflammatory gastrointestinal disease
* pregnant or lactating women
* use of medications that are known to affect the study outcome measures and that cannot be temporarily discontinued for this study
* use of medications known to affect the composition of the gut microbiota within the last 30 days (most notably antibiotics)
* bowel movements \<3 times per week
* vegans, vegetarians, those with lactose intolerance and/or severe allergies/aversions/sensitivities to foods and ingredients included in the prescribed meal plan
* persons who are not able to grant voluntary informed consent
* persons who are unable or unwilling to follow the study protocol or who, for any reason, the research team considers not an appropriate candidate for this study, including non-compliance with screening appointments or study visits.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Countries

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United States

Other Identifiers

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201907041

Identifier Type: -

Identifier Source: org_study_id