Projects per year
Abstract
Background:
Viscous or gel-forming dietary fibers can increase satiety by a more firm texture and increased eating time. Effects of viscous or gel-forming fibers on satiety by post-ingestive mechanisms such as gastric emptying, hormonal signals, nutrient absorption or fermentation are unclear. Moreover, it is unclear whether the effects persist after repeated exposure.
Objective:
To investigate satiety and energy intake after single and repeated exposure to gelled fiber by post-ingestive mechanisms.
Design:
In a two-arm crossover design, 32 subjects (24 female subjects, 21±2 y, BMI 21.8±1.9¿kg¿m-2) consumed test foods once daily for 15 consecutive days, with 2 weeks of washout. Test foods were isocaloric (0.5¿MJ, 200¿g) with either 10¿g gel-forming pectin or 3¿g gelatin and 2¿g starch, matched for texture and eating time. Hourly satiety ratings, ad libitum energy intake and body weight were measured on days 1 (single exposure) and 15 (repeated exposure). In addition, hourly breath hydrogen, fasting glucose, insulin, leptin and short-chain fatty acids were measured.
Results:
Subjects rated hunger, desire to eat and prospective intake about 2% lower (P0.64). After receiving pectin, energy intake was lower (-5.6%, P=0.012) and breath hydrogen was elevated (+12.6%, P=0.008) after single exposure, but not after repeated exposure. Fasting glucose concentrations were higher both after single and repeated exposure to pectin (+2.1%, P=0.019). Body weight and concentrations of insulin, leptin and short-chain fatty acids did not change during the study.
Conclusions:
Gelled pectin can increase satiety and reduce energy intake by post-ingestive mechanisms. Although the effects were small, the effects on satiety were consistent over time, whereas the effects on energy intake reduction were not
Original language | English |
---|---|
Pages (from-to) | 794-800 |
Journal | International Journal of Obesity |
Volume | 38 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- sustained pectin ingestion
- libitum food-intake
- lupin-kernel fiber
- chain fatty-acids
- body-weight
- in-vitro
- glucose-tolerance
- sensory exposure
- appetite
- satiation
Fingerprint
Dive into the research topics of 'Satiety and energy intake after single and repeated exposure to gel-forming dietary fiber: post-ingestive effects'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Eiwitten contra obesitas (KB-15-003-003, KB-05-009-003)
van Amerongen, A. (Project Leader)
1/05/08 → 31/12/11
Project: LVVN project