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Determination of Glycemic Index of Six Greek Honey Grades

NCT ID: NCT03331757

Last Updated: 2017-11-06

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

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-02-12

Study Completion Date

2017-09-02

Brief Summary

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This study determined the glycemic index and glycemic load of six Greek honey varieties

Detailed Description

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This randomized, double-blind, cross-over study investigated the glycemic response to six Greek honey grades differing in floral source and carbohydrate composition. Isoglucidic test meals (50g available carbohydrate) and 50g glucose reference were given to 11 clinically and metabolically healthy, fasting individuals (27±7 years; 9 women; BMI 24±4kg/m2), in random order. GI was calculated using the FAO/WHO method. Capillary blood glucose samples were collected at 0,15,30,45,60,90-and-120min. Salivary insulin samples were collected at 0,60-and-120min. Subjective appetite ratings (hunger, fullness and desire to eat) were assessed by visual analogue scales (VAS, 100mm) at baseline and 120min.

Conditions

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Potential Abnormality of Glucose Tolerance Appetitive Behavior

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Eleven healthy participants consumed in random order 50g available carbohydrates as glucose (tested three times) and 50g available carbohydrates as fir, chestnut, healther, thyme, pine, citrus, tested once, on separate occasions
Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators
Participants were assigned to the interventions using a sequence of random numbers extracted from computer software. A researcher not involved with the collection and the analysis of the scientific data, was responsible for the randomization of the volunteers to the intervention days examining the test foods. All test meals (glucose and honeys) were diluted in 300ml water and were served in dark paper cups covered with a lid in order to achieve double blind conditions.

Study Groups

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Glucose as reference food

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from D-glucose, tested three times, in different weeks as reference food along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from fir honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from heather honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from citrus honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from pine honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from thyme honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Eleven metabolically healthy, normal weight subjects (male: 2, female: 9) after 10-14 hr fast, consumed 50g available carbohydrate from chestnut honey, tested once, along with 300ml water. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min. The first glucose sample was taken exactly 15min after the first drink.

Group Type EXPERIMENTAL

Glucose as reference food

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Fir honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Heather honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Citrus honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Pine honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Thyme honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Chestnut honey

Intervention Type OTHER

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Interventions

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Glucose as reference food

Eleven subjects (male: 2, female: 9) consumed 50g glucose diluted in 300ml water, tested three times, in different weeks, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Fir honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of fir honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Heather honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of heather honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Citrus honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of citrus honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Pine honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of pine honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Thyme honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of thyme honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Chestnut honey

Eleven subjects (male: 2, female: 9) consumed 50g available carbohydrates of chestnut honey diluted in 300ml water, tested once, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* healthy
* non-smoking
* individuals with normal body mass index (between 18.5 and 24.9 kg/m2)

Exclusion Criteria

* coronary heart disease
* diabetes mellitus
* kidney disease
* liver conditions
* endocrine conditions
* gastrointestinal disorders
* pregnancy
* lactation,
* competitive sports
* alcohol
* drug dependency
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Agricultural University of Athens

OTHER

Sponsor Role lead

Responsible Party

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Aimilia Papakonstantinou

Primary investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Emilia Papakonstantinou, PhD

Role: PRINCIPAL_INVESTIGATOR

Agricultural University of Athens

Locations

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Agricultural University of Athens

Athens, , Greece

Site Status

Countries

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Greece

Other Identifiers

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1254

Identifier Type: -

Identifier Source: org_study_id