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Clin Nutr. 2017 Feb;36(1):126-133. doi: 10.1016/j.clnu.2015.12.016. Epub 2016 Jan 11.

Consuming yellow pea fiber reduces voluntary energy intake and body fat in overweight/obese adults in a 12-week randomized controlled trial.

Author information

1
Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada. Electronic address: jel.lambert@gmail.com.
2
Physical Education and Recreation Studies, Mount Royal University, 4825 Mount Royal Gate SW, Calgary, AB T3E 6K6, Canada. Electronic address: jparnell@mtroyal.ca.
3
Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada. Electronic address: jasmine.tunnicliffe@gmail.com.
4
Food Processing Development Centre, Alberta Agriculture and Rural Development, 6309 - 45 Street, Leduc, AB T9E 7C5, Canada. Electronic address: jay.han@gov.ab.ca.
5
Food Processing Development Centre, Alberta Agriculture and Rural Development, 6309 - 45 Street, Leduc, AB T9E 7C5, Canada. Electronic address: troy.sturzenegger@gov.ab.ca.
6
Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada; Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada. Electronic address: reimer@ucalgary.ca.

Abstract

BACKGROUND & AIMS:

The purpose of this randomized, double-blind, placebo-controlled study was to assess the effects of yellow pea fiber intake on body composition and metabolic markers in overweight/obese adults.

METHODS:

Participants (9 M/41 F; age 44 ± 15 y, BMI 32.9 ± 5.9 kg/m2) received isocaloric doses of placebo (PL) or pea fiber (PF; 15 g/d) wafers for 12 weeks. Outcome measures included changes in anthropometrics, body composition (DXA), oral glucose tolerance test (OGTT), food intake (ad libitum lunch buffet), and biochemical indices.

RESULTS:

The PF group lost 0.87 ± 0.37 kg of body weight, primarily due to body fat (-0.74 ± 0.26 kg), whereas PL subjects gained 0.40 ± 0.39 kg of weight over the 12 weeks (P = 0.022). The PF group consumed 16% less energy at the follow-up lunch buffet (P = 0.026), whereas the PL group did not change. During the OGTT, glucose area under the curve (AUC) was lower in PF subjects at follow-up (P = 0.029); insulin increased in both groups over time (P = 0.008), but more so in the PL group (38% higher AUC vs. 10% higher in the PF group). There were no differences in gut microbiota between groups.

CONCLUSIONS:

In the absence of other lifestyle changes, incorporating 15 g/day yellow pea fiber may yield small but significant metabolic benefits and aid in obesity management. Clinical Trial Registry: ClinicalTrials.gov NCT01719900.

KEYWORDS:

Body weight; Dried peas; Functional food; Legume; Obesity

PMID:
26811130
DOI:
10.1016/j.clnu.2015.12.016
[Indexed for MEDLINE]

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