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Characterizing Emmer Seeds and Flours, and Determining the Glycemic Effects of Emmer Breads

Not Applicable
Completed
Conditions
Appetitive Behavior
Potential Abnormality of Glucose Tolerance
Interventions
Other: Glucose as reference food
Other: Emmer bread from Greek emmer
Other: Emmer bread from Italian emmer
Other: Whole wheat commercial bread
Registration Number
NCT04858373
Lead Sponsor
Agricultural University of Athens
Brief Summary

This study characterized emmer seeds, flours, and breads, and investigated the effects of emmer breads on the glycemic response

Detailed Description

This study aimed to 1. describe the technological characteristics of emmer seeds, flours, and breads, 2. determine the glycemic index and glycemic load of two emmer breads, and 3. to investigate the effects of these breads on postprandial glycemic response in healthy subjects

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
14
Inclusion Criteria
  • healthy
  • non-smoking
  • non-diabetic men and women
  • body mass index (BMI) between 18 and 27 kg/m2
Exclusion Criteria
  • severe chronic disease (e.g. coronary heart disease, diabetes mellitus,kidney or liver conditions, endocrine conditions)
  • gastrointestinal disorders
  • pregnancy
  • lactation
  • competitive sports
  • alcohol
  • drug dependency

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Emmer bread from Italian emmerEmmer bread from Greek emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Italian emmerGlucose as reference foodFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Italian emmerEmmer bread from Italian emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Whole wheat commercial breadGlucose as reference foodFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Glucose as reference foodGlucose as reference foodFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Glucose as reference foodWhole wheat commercial breadFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Greek emmerGlucose as reference foodFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Glucose as reference foodEmmer bread from Italian emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Italian emmerWhole wheat commercial breadFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Whole wheat commercial breadEmmer bread from Greek emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Glucose as reference foodEmmer bread from Greek emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Greek emmerEmmer bread from Greek emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Greek emmerEmmer bread from Italian emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Emmer bread from Greek emmerWhole wheat commercial breadFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Whole wheat commercial breadEmmer bread from Italian emmerFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Whole wheat commercial breadWhole wheat commercial breadFourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.
Primary Outcome Measures
NameTimeMethod
Capillary blood glucose responses2 hours

Clinically useful change in blood glucose, defined as the restoration of glucose within normal limits during the 2hr glucose tolerance test

Secondary Outcome Measures
NameTimeMethod
Blood pressure2 hours

Useful change in systolic and diastolic blood pressure before and 2hr after consumption of the breads

Subjective appetite ratings2 hours

Useful change in subjective appetite using visual analogue scales with a score 0 to 10 (given in the form of booklet,one scale per page) at baseline, 15, 30, 45, 60, 90 and 120 min. The minimum or maximum score will be evaluated if it is better or worse depending on the appetite variable e.g hunger, satiety, desire to eat etc.

Trial Locations

Locations (1)

Agricultural University of Athens

🇬🇷

Athens, Attica, Greece

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