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Addition of soluble or insoluble fiber to a high‐protein breakfast bar did not enhance subjective satiety
Author(s) -
Madore EYM,
Eldridge AL,
Me R,
Pohle RJ,
Nyrop JE,
Pelkman CL
Publication year - 2007
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.21.5.a319-b
Subject(s) - overweight , fiber , appetite , morning , food science , dietary fiber , medicine , chemistry , zoology , obesity , biology , organic chemistry
Epidemiological studies have shown an inverse relationship between intake of dietary fiber and body weight. Clinical studies that examined effects of fiber on appetite and food intake, however, have produced conflicting results. We sought to test the effects of dietary fiber on subjective satiety in overweight and obese women. Our manipulation involved adding soluble or insoluble fiber (10 g) to equicaloric (≈ 400 kcal) breakfast bars that contained approximately 24 g of whey protein. Women (n = 35) consumed the bars in the laboratory and completed visual analog ratings (VAS) of appetitive sensations (hunger, fullness and prospective consumption) over the morning until lunch. No effect of fiber or fiber type was found for the VAS ratings at any time point after breakfast. A significant effect of condition was found for hunger when expressed as 2‐hr area‐under‐the‐curve values. Women reported less hunger after consuming the soluble‐fiber bar (11.7 mm·hr) compared to the insoluble‐fiber bar (20.8 mm·hr, Tukey's P = 0.017) but these values did not differ from the low‐fiber control (14.1 mm·hr). VAS ratings returned to baseline values at four hours after breakfast and were not different between conditions. These results indicate that adding 10 g of fiber (soluble or insoluble) did not enhance the satiating effects of a high‐protein breakfast bar in overweight and obese women. Supported by General Mills.