Comparison of the Impacts of Pea, Lentil, and Oat Flour Particle Size on Postprandial Glycemic Response and Appetite in Healthy Adults
Overview
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Toronto
- Enrollment
- 60
- Locations
- 1
- Primary Endpoint
- Change in postprandial glycemic response
Overview
Brief Summary
The study looks at the comparative effects of food products made with pea, lentil, and oat flour of various particle sizes on postprandial glycemic response, appetite and food intake, and amino acid release in healthy adults.
Detailed Description
A total of 60 participants (30 males, 30 females) will take part in this study at the University of Toronto. Twenty participants will be recruited to each one of three trials (pea, lentil or oat) and will attend 4 study sessions where they will consume crackers/porridge made with pea, lentil, oat, or wheat flours of different particle sizes. Questionnaires will be filled out to assess their recent food intake, physical activity, sleep quality, stress level, appetite, physical comfort, and energy/fatigue level, as well as tastefulness of the food. Blood samples will be collected at fasting and at various time points over a 2 hour period after eating to measure blood glucose, insulin, and amino acid concentrations. Before leaving, participants will receive an all-you-can-eat pizza meal to assess their food intake.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Prevention
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 18 Years to 45 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •18-45 years of age
- •BMI 18.5-29.9 kg/m2
- •Willing to maintain habitual diet, physical activity pattern, and body weight throughout the trial.
- •Willing to maintain current dietary supplement use throughout the trial.
- •Willing to abstain from alcohol consumption for 24h prior to all test visits.
- •Willing to avoid vigorous physical activity for 24h prior to all test visits.
- •Understanding the study procedure and willing to provide informed consent to participate in the study and authorization to release relevant protected health information to the study investigator.
Exclusion Criteria
- •Thyroid problems
- •Previous history of cardiovascular disease, diabetes, liver or kidney disease, inflammatory bowel disease, celiac disease, short bowel syndrome, a malabsorptive syndrome, pancreatitis, gallbladder or biliary disease.
- •Presence of a gastrointestinal disorder or surgeries within the past year.
- •Known to be pregnant or lactating.
- •Unwillingness or inability to comply with the experimental procedures and to follow our safety guidelines.
- •Allergies to peanuts and nuts.
- •Known intolerances, sensitivity or allergy to any ingredients in the study products: pea flour, lentil flour, oat flour and whole wheat flour.
- •Regular breakfast skipping (consumes breakfast less than 5 days a week)
- •Extreme dietary habits (i.e Atkins diet, very high protein diets, etc.) or restrained eaters, identified by a score of ≥ 11 on the Eating Habits Questionnaire
- •Uncontrolled hypertension (systolic blood pressure \> 140 mm Hg or diastolic blood pressure \> 90 mm Hg) as defined by the average blood pressure measured at screening.
Outcomes
Primary Outcomes
Change in postprandial glycemic response
Time Frame: Blood glucose will be measured at baseline and at 15, 30, 45, 60, 90, 120, and 140 minutes after treatment consumption. Insulin will be measured at baseline and every half an hour after treatment consumption over 2 hours.
Blood collection via finger prick to analyze blood glucose (glucometer reading) and serum insulin concentration (μIU/mL).
Secondary Outcomes
- Food intake(2 hours after treatment consumption.)
- Subjective appetite(At baseline and at 15, 30, 45, 60, 90, 120, and 140 minutes after treatment consumption.)
- Physical comfort(At baseline and at 15, 30, 45, 60, 90, 120, and 140 minutes after treatment consumption.)
- Protein quality(At baseline and every half hour after treatment consumption over a period of 2 hours, and after pizza meal.)
- Treatment palatability(Immediately after treatment consumption.)
- Energy & fatigue(At baseline and at 15, 30, 45, 60, 90, 120, and 140 minutes after treatment consumption.)
Investigators
G. Harvey Anderson
Professor
University of Toronto