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ARS Home » Northeast Area » Boston, Massachusetts » Jean Mayer Human Nutrition Research Center On Aging » Research » Publications at this Location » Publication #171985
Title: EFFECTS OF A FIBER SUPPLEMENT ON HUNGER AND DIETARY COMPLIANCE DURING CALORIE RESTRICTION

Author
item HAJDUK, CHERYL - TUFTS/HNRCA
item DAS, SAI KRUPA - TUFTS/HNRCA
item KIM, JUDY - TUFTS/HNRCA
item SALTZMAN, EDWARD - TUFTS/HNRCA
item BALES, CONNIE - DUKE CLINICAL RES INSTIT
item MCCRORY, MEGAN - TUFTS/HNRCA
item PITTAS, ANASTASSIOS - TUFTS/HNRCA
item GOLDEN, JULIE - TUFTS/HNRCA
item ELDER, SONYA - TUFTS/HNRCA
item TYLER, STEPHANIE - TUFTS/HNRCA
item ROBERTS, SUSAN - TUFTS/HNRCA

Submitted to: Obesity Research
Publication Type: Abstract Only
Publication Acceptance Date: 6/30/2004
Publication Date: 10/1/2004
Citation: Hajduk, C., Das, S., Kim, J., Saltzman, E., Bales, C., Mccrory, M., Pittas, A., Golden, J., Elder, S., Tyler, S., Roberts, S. 2004. Effects of a fiber supplement on hunger and dietary compliance during calorie restriction [abstract]. Obesity Research. 12Suppl:A65-66.

Interpretive Summary:

Technical Abstract: We studied the effects of a food fiber supplement on hunger and compliance with a provided dietary regimen involving caloric restriction (CR) to 70% of ad libitum intake. Subjects (n=15, 12F, 3M) were healthy overweight men and women (Means +/-SD: 35.5+/-6 y; BMI 27.6+/-1.2 kg/m2) from a larger CR trial who had been randomized to a low glycemic index diet (G), and were further randomized to receive either a 20g/d fiber supplement (G+) or no supplement (G-) for 6 weeks. The fiber supplement was started 5 weeks after the start of CR. The baseline diet contained 29+/-4 g/d dietary fiber; therefore, total fiber intake in the G+ group was substantially higher than the current RDA. Outcome variables were hunger, desire to eat, and satisfaction with amount of food provided measured by analog scales (means of daily values were calculated for each subject), number of reported occasions when the subjects ate non-study food, and body weight change. There were no statistically significant differences between the groups for any of the variables. However, subjects randomized to G+ tended to have lower mean hunger and desire to eat ratings than G- subjects (30.1+/-22.6 mm vs. 47.3+/-9.8 mm, P=0.063; 33.0+/-20.3 mm vs. 47.2+/-10.9 mm, P=0.1 respectively) and greater satisfaction with the amount of food (71.6+/-22.6 mm vs. 57.3+/-5.4 mm, P=0.087). There was also a trend for weight loss to be greater in the G+ group compared to G- (-80 19 g/d vs. -58+/-38 g/d, P=0.2). The G+ group also tended to have fewer reported occasions when they were non-compliant, though again not significantly fewer. In conclusion, while no statistically significant differences were found in data from this ongoing trial, preliminary results indicate trends towards reduced hunger and greater compliance in the G+ group. Further work is needed to determine whether substantially higher fiber intakes than current RDAs, as used in this study, may have utility for suppression of hunger during CR.