Glucose and Insulin Responses to Test Foods
Characterization of the Postprandial Glucose and Insulin Responses to Test Foods in Lean and Overweight Subjects
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Ontario
-
Toronto, Ontario, Canada, M5C 2N8
- Glycemic Index Laboratories
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Participants will be non-smoking males or non-pregnant females aged 20-45y, with normal glycemia and in good health. A total of 12 participants will be included, where approximately half will be male & half female, and half normal weight (BMI > 19.0 and < 25.0) and half overweight but not obese (BMI > 25.0 and < 30). Thus, no fewer than 5 male, 5 female, 5 normal weight and 5 overweight but not obese subjects will be included. Additional inclusion criteria will include:
- Absence of diabetes, impaired glucose tolerance and impaired fasting glucose, defined as having a fasting plasma glucose < 5.6 mmol/L (100 mg/dL) AND plasma glucose levels < 7.8 mmol/L (140 mg/dL) 2h after consumption of a 50 g glucose drink (OGTT will be administered during the screening visit)
- Systolic blood pressure 100-150 mmHg inclusive
- Diastolic blood pressure 60-90 mmHg inclusive
- Resting heart rate 50-90 beats/min inclusive after 3 minute rest
- Able to refrain from eating legumes and drinking alcohol the day before each test session
- Fasting triglycerides < 2.0 mmol/L (178 mg/dL)
- Fasting HDL cholesterol > 0.9 mmol/L (35 mg/dL) for males and > 1.1mmol/L (42 mg/dL) for females
- Fasting LDL cholesterol < 5.0 mmol/L (193 mg/dL)
- AST and ALT < 120% of upper limit of normal (ULN)
- hsCRP < 10 mg/L
- Urea and creatinine < 150% ULN
Exclusion Criteria:
- failure to meet any one of the inclusion criteria
- age less than 18 or over 45 years
- known history or AIDS, hepatitis, diabetes or a heart condition
- participants using medications or with any condition which might, in the opinion of Dr. Wolever, the president of GI Testing, either: 1) make participation dangerous to the subject or to others, or 2) affect the results
- participants who cannot or will not comply with the experimental procedures or do not follow GI Labs safety guidelines.
- Food allergies of any kind
- General anaesthesia in the month prior to inclusion.
- Smokers
Study Plan
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Other: Reference Glucose
Glucose standard
|
|
|
Experimental: Test Food 1
Cereal
|
|
|
Experimental: Test Food 2
Biscuit
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Postprandial Glucose Response
Time Frame: 3 hours
|
3 hours
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Postprandial Insulin Response
Time Frame: 3 hours
|
3 hours
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- GIl1244
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