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Effect of Lubricity of Food Gels on Satiation and Satiety

Appetitive Behavior Clinical Trial

Official title:
The Effects of Hydrogels Differing in Their Lubricity on Appetite Control, Satiety, Subsequent Food Intake and Salivary Biomarkers

Clinical Trial Summary

The main aim of the study is to elucidate the influence of fibre-based hydrogels differing in their mechanical properties (characterized both instrumentally and sensorially) in terms of low/ high lubricity on satiety, satiation and salivary biomarkers.

Clinical Trial Description

An acute, randomized cross-over study that compares two types of fibre-based hydrogels differing in their lubrication properties, resulting in different pastiness and instrumental mechanical properties (lubricity). The gels are prepared using dietary fibres (kappa carrageenan, alginate). Both hydrogels contain added watermelon flavor, food grade color and sweetener. Water acts as a control and has the same flavor, color and sweetness to match the hydrogels.

Participants are asked come to the laboratory on three occasions. Before participating, each participant is screened for eligibility criteria using an online health screening questionnaire and Three Factors Eating Questionnaire. Participants are offered one of the three products (water or either of the two gels), the order of which is randomized and counterbalanced.

Participants are instructed to fast for 11 hours and to restrict from drinking alcohol for 24 hours before each session. In the first session, weight and height are measured. Participants then provide baseline (- 5 minutes) appetite ratings on a 100 mm visual analogue scale (VAS). After that they are given a standardized breakfast (females - 250kcal, males - 350 kcal). Then, participants are asked to rate their appetite on a 100-mm VAS in every 30 minutes for the next 2.5 hours. After that, they are given the preload - either hydrogels differing in their structure complexity or water. After consuming the preload, appetite ratings are recorded by the participants on three time points on 100-mm VAS. Ad libitum food is offered as lunch after 30 minutes after ingesting the preload and the last VAS is taken. Food intake is measured. Saliva is taken three times during each session after breakfast, before and after preload consumption to measure protein, mucin content, amylase activity, and salivary lubricity (tribology). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04240795
Study type Interventional
Source University of Leeds
Contact
Status Completed
Phase N/A
Start date November 1, 2019
Completion date July 31, 2020
View Details
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