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Effects of Oligofructose and Barley on Satiety and Energy Intake

Appetite Regulation Clinical Trial

Official title:
The Effect of Meal Replacement Bars Containing Different Types of Fibres (Oligofructose and/or Barley) on Satiety and Energy Intake

Clinical Trial Summary

The effect of beta-glucan or fructo-oligosaccharide or their combination in bars on satiety and food intake was tested by supplying these bars on two consecutive days.

Clinical Trial Description

Background: Increasing gastro-intestinal viscosity or colonic fermentation is suggested to help improve appetite control and reduce food intake. Beta-glucan (BG) and fructo-oligosaccharide (FOS) are food ingredients proposed to act this way, but results so far remain inconclusive.

Objective: To test the effect of FOS, BG, or their combination in bars on appetite ratings and food intake during 2 consecutive days.

Design: In a 4-way balanced order cross-over double-blind design, 21 healthy volunteers (mean BMI 25.9 kg/m2) received a meal replacement bar at 09.00h and an ad libitum lunch at 13.00h on 2 consecutive days. On day 1 only, subjects consumed a second (identical) bar at 17.00h and a fixed snack at 19.00h. The control bar contained 0.3g BG (control, from 6.8 g oats), vs equi-caloric bar formulations containing an additional: 1) 0.9 g BG (from 8.0g barley), 2) 8g FOS, or 3) 0.9 g BG + 8g FOS. Appetite scores and subsequent ad libitum test meal intakes were measured. Bar viscosities were determined under simulated gastric conditions. Results were analyzed using ANCOVA.

Results: Addition of BG, FOS or their combination did not affect appetite ratings or food intake, although addition of BG to the bar doubled apparent gastric viscosity (841 vs 351 mPa.s).

Conclusions: BG, FOS or their combination in bars at these levels do not improve appetite control when consumed on 2 consecutive days. Efficacy might be increased by a longer exposure period, increasing the BG content, or a form of BG that generates even higher gastric viscosity. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor)

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00776256
Study type Interventional
Source Unilever R&D
Contact
Status Completed
Phase N/A
Start date February 2007
Completion date April 2007
View Details
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