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Effectiveness of legume consumption for facilitating weight loss: a randomized trial
Author(s) -
McCrory Megan A,
Lovejoy Jennifer C,
Palmer Philip A,
Eichelsdoerfer Petra E,
Gehrke Malinda M,
Kavanaugh Ian T,
Buesing Scott A,
Rose Teri L
Publication year - 2008
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.22.1_supplement.1084.8
Subject(s) - weight loss , medicine , randomized controlled trial , meal , zoology , legume , observational study , biology , obesity , botany
Legumes are rich in factors which help promote satiety, including fiber, resistant starch and protein. Observational and multi‐meal experimental studies suggest that consuming legumes may help support healthy weight; however, randomized trials are lacking. We are conducting a 6‐wk randomized trial with 6‐wk follow‐up to test whether consuming legumes facilitates weight loss and improves chronic disease risk. After baseline measurements, subjects are advised to reduce daily energy intake (EI) by 30%. About half of the target EI is provided and consumption required, while the remainder of EI is self‐selected. Subjects are randomly assigned to 1 of 3 groups: DG: the US Dietary Guideline recommendation of 3 c/wk of legumes (0.5 c/d, 6 d/wk); DRI: the amount of legumes needed to meet the Dietary Reference Intake for fiber (women 1.8 c/d, men 2.7 c/d, 6 d/wk); or control: minimal legumes. To date, 28 subjects have enrolled (goal n=66). Mean±SEM weight loss thus far was: wk 3 (−1.7±0.3 kg), wk 6 (−2.7±0.7 kg), and wk 12 (−2.5±0.8 kg) (p 0.01 for each)). At wk 3, weight loss was greater in the DG and DRI groups (−2.3±0.4 kg; −2.4±0.7 kg) vs the control group (−0.9±0.4 kg)(n=19; p=0.046). At wk 6, weight loss also differed among groups (DG: −3.4±0.9 kg; DRI: −3.9±1.4 kg; control: 1.0±1.1 kg (n=15; p=0.11–0.12 control vs DG/DRI). Consuming at least 0.5 c/d of legumes may assist with weight loss and maintenance. [Funding: Pulse Canada]