Mackie, AR orcid.org/0000-0002-5681-0593, Bajka, BH, Rigby, NM et al. (6 more authors) (2017) Oatmeal particle size alters glycemic index but not as a function of gastric emptying rate. American Journal of Physiology - Gastrointestinal and Liver Physiology, 313 (3). G239-G246. ISSN 0193-1857
Abstract
The aim of this study was to determine the extent to which oat particle size in a porridge could alter glucose absorption, gastric emptying, gastrointestinal hormone response, and subjective feelings of appetite and satiety. Porridge was prepared from either oat flakes or oat flour with the same protein, fat, carbohydrate, and mass. These were fed to eight volunteers on separate days in a crossover study, and subjective appetite ratings, gastric contents, and plasma glucose, insulin, and gastrointestinal hormones were determined over a period of 3 h. The flake porridge gave a lower glucose response than the flour porridge, and there were apparent differences in gastric emptying in both the early and late postprandial phases. The appetite ratings showed similar differences between early- and late-phase behavior. The structure of the oat flakes remained sufficiently intact to delay their gastric emptying, leading to a lower glycemic response, even though initial gastric emptying rates were similar for the flake and flour porridge. This highlights the need to take food structure into account when considering relatively simple physiological measures and offering nutritional guidance.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 the American Physiological Society. This is an author produced version of a paper published in American Journal of Physiology - Gastrointestinal and Liver Physiology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | oats; glycemic response; particle size; gastric emptying; appetite |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Jan 2018 15:49 |
Last Modified: | 01 Jun 2018 00:40 |
Status: | Published |
Publisher: | American Physiological Society |
Identification Number: | 10.1152/ajpgi.00005.2017 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:125821 |