Effects of Cocoa on Gastrointestinal Function

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

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-31

Study Completion Date

2017-06-30

Brief Summary

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This is a randomized, controlled, 2x2 cross-over study to assess the effects of cocoa solids on gastrointestinal transit, post-prandial sensation and well-being. Additionally functional brain imaging will be applied to identify regions of brain that are activated or inactivated by cocoa ingestion. Healthy subjects will be recruited and randomized to receive either dark chocolate (70% cocoa solids) or white chocolate (0% cocoa solids) in addition to their normal diet in randomized order. Reference standard methodology will be applied to measure gastric emptying, oro-caecal and colonic transit time. Dark and white chocolate (100g, \~500kcal, \~50% fat) will be consumed with radio-opaque markers on three consecutive days. On the third day chocolate ingestion will be followed by measurements of postprandial brain activity using FDG-Positron Emission Tomography. Additionally colonic transit will be assessed based on the number and distribution of radio-opaque markers in the colon. On the fourth day gastric emptying and oro-caecal transit time will be assessed by scintigraphy after ingestion of a dark or white chocolate mousse test meal (both 150g, \~500kcal, \~50% fat). During both interventional studies pre- and post-prandial satiety and dyspeptic symptoms, well-being and mood will be recorded. Additionally, validated questionnaires will assess digestive comfort and well-bring at the end of each study day. These results will deliver comprehensive information about the effects of cocoa on gastrointestinal transit and sensation.

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Detailed Description

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Conditions

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Gastrointestinal and Digestive Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Dark chocolate: FDG-PET

100 g dark chocolate bar (70% cocoa solids (\~500kcal, \~50% fat)) will be consumed with radio-opaque markers on three consecutive days. On the third day chocolate ingestion will be followed by measurements of postprandial brain activity and colonic transit using chocolate: fluorodeoxyglucose Positron Emission Tomography (FDG-PET)

Group Type ACTIVE_COMPARATOR