Acute and Second Meal Effects of Peanuts on Glycemic Response and Appetite in Obese Women With High Type 2 Diabetes Risk: a Randomized Crossover Trial
Overview
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Federal University of Vicosa
- Enrollment
- 15
- Locations
- 1
- Primary Endpoint
- Change from baseline in glucose homeostasis at eight hours
Overview
Brief Summary
Nut consumption is associated with reduced risk of Type 2 diabetes. The aim of this study was to assess the effects of peanut (whole or peanut butter) to breakfast meals on glycemic, insulinemic and selected gut hormone responses, appetite, and food intake over two consecutive meals in obese women with high Type 2 diabetes risk. Fifteen women participated in a randomized crossover trial where 42.5g of whole peanuts (P), peanut butter (PB), or no peanuts (control-C) were added to a 75g available carbohydrate-matched breakfast meal. Postprandial concentrations of blood glucose, insulin, non-esterified free fatty acids (NEFA), glucagon-like peptide-1 (GLP-1), peptide YY (PYY), cholecystokinin (CCK), appetitive sensations and food intake were assessed after breakfast treatments and a standard lunch (75g available carbohydrate).
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 50 Years (Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Body mass index between 30 - 35 kg/M2
- •Not taking medications known to affect glycemia, fat metabolism, or appetite
- •Regular breakfast consumer (≥100 kilocalories ingested within 2 hours of waking on ≥4d/wk)
- •No body weight fluctuation (\<5kg in the past 3 months)
- •Willingness to eat all test foods
- •No self-reported allergy to the foods provided in the study
- •No self-reported sleep disorders
- •At least one of the following conditions: waist circumference ≥ 88 cm; reported family history of Type 2 diabetes in first degree relatives; capillary glycemia between 5.5 - 7.0 mmol/L; and/or a 2-hour blood glucose of 7.8 - 11.1 mmol/L (impaired glucose tolerance)
Exclusion Criteria
- •Type 2 diabetes mellitus
- •Dyslipidemia
- •High blood pressure
Outcomes
Primary Outcomes
Change from baseline in glucose homeostasis at eight hours
Time Frame: Baseline (-10), 15, 45, 60, 90, 120, 180, 240, 265, 295, 310, 340, 370, 430 and 490 minutes
Postprandial concentrations and incremental area under the curve of blood glucose, insulin and glucagon-like peptide-1, and incremental area above the curve of non-esterified free fatty acids were assessed after breakfast treatments and a standard lunch
Secondary Outcomes
- Change from baseline in incretin hormones at four hours(Baseline (-10), 15, 45, 60, 90, 120, 180 and 240 minutes)
- Change in food intake over 24 hours(24 hours)
- Change from baseline in appetitive sensations at twelve hours(Baseline (-10), 15, 45, 60, 90, 120, 180, 240, 265, 295, 310, 340, 370, 430, 490, 550, 610, 670 and 730 minutes)