Erschienen in:
02.01.2021 | Original Contribution
Increased oral processing and a slower eating rate increase glycaemic, insulin and satiety responses to a mixed meal tolerance test
verfasst von:
Ai Ting Goh, Jie Ying Michelle Choy, Xin Hui Chua, Shalini Ponnalagu, Chin Meng Khoo, Clare Whitton, Rob Martinus van Dam, Ciarán Gerard Forde
Erschienen in:
European Journal of Nutrition
|
Ausgabe 5/2021
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Abstract
Purpose
Variations in specific oral processing behaviours may contribute to differences in glucose, insulin and satiety responses to a standardised test meal. This study tested how natural variations in oral processing between slower and faster eaters contribute to differences in post-prandial glucose (PP glucose), insulin response (PP insulin) and post-meal satiety for a standardised test meal.
Methods
Thirty-three participants with higher risk for type 2 diabetes consumed a standardised test-meal while being video recorded to derive specific oral processing behaviours. Plasma glucose, insulin and satiety measures were collected at baseline, during and post meal. Participants were split into slower and faster eaters using median split based on their eating rates and individual bolus properties were analysed at the point of swallow.
Results
There were large variations in eating rate (p < 0.001). While there was no significant difference in PP glucose response (p > 0.05), slower eaters showed significantly higher PP insulin between 45 and 60 min (p < 0.001). Slower eaters had longer oro-sensory exposure and increased bolus saliva uptake which was associated with higher PP glucose iAUC. Faster eating rate and larger bolus particle size at swallow correlated with lower PP glucose iAUC. A slower eating rate with greater chews per bite significantly increased insulin iAUC. Faster eaters also consistently rated their hunger and desire to eat higher than slower eaters (p < 0.05).
Conclusions
Natural variations in eating rate and the associated oral processing contributed to differences in PP glucose, PP insulin and satiety responses. Encouraging increased chewing and longer oral-exposure time during consumption, may promote early glucose absorption and greater insulin and satiety responses, and help support euglycaemia.
Trial Registration
ClinicalTrials.gov identifier: NCT04522063.