Impact of 12-weeks of Lentil Consumption on Visceral Adipose Tissue in Overweight and Obese Adults.

Sofia R. Whitefields, Kaitlyn Weinheimer, Stephanie Wilson, Marcy E. Gaston, Mary P. Miles, Ian Dyson, Health and Human Development (HHD),Montana State University, Culbertson Hall, 100, Bozeman, MT 59717

Increased visceral adipose tissue (VAT) is associated with elevated risk for cardiovascular disease. Fiber offers protective benefits and is inversely related to VAT volume. Fiber-rich and low-fat, lentils may be an ideal dietary strategy to benefit populations most at-risk for developing chronic disease. In this preliminary analysis, we hypothesize that long-term fiber intake via lentil consumption in heavier adults reduces VAT volume. Adults (n=8) with a waist circumference greater than 35 and 40 inches for women and men participated in a 12-week dietary intervention. Participants received 7 mid-day meals with 0 (control) or 3 cups of total lentils each week, but were otherwise asked to maintain normal diet and exercise patterns. VAT was measured pre- and post-intervention using the SECA mBCA 515 analyzer. Participants also completed an online diet history questionnaire pre-and post-intervention to quantify habitual added sugar, fiber, and total caloric intake. Average time in moderate to vigorous physical activity (MVPA) was assessed through an accelerometer worn for 7 days during the first and last intervention week. Changes in VAT were assessed through a mixed-effects model accounting for average MVPA, habitual added sugar and, total caloric intake. The volume of VAT did not differ between lentil and control groups after 12-weeks of receiving mid-day meals (p=0.43), after accounting for MVPA, total caloric intake, and habitual added sugar consumption. Habitual added sugar (p=0.19) and caloric intake (p=0.24) did not impact VAT volume. Similarly, average MVPA did not impact VAT (p=0.50). While we accounted for interindividual differences in VAT, our preliminary analysis had a small sample size which makes it difficult to detect potential diet-induced changes. More participants may provide us with more conclusive evidence. Investigating long-term fiber intake may have important applications for reducing chronic disease risk. 

Funding supported by USDA-ARS Pulse Crop Health Initiative 58-3060-9-040

Additional Abstract Information

Presenters: Sofia Whitefields, Kaitlyn Weinheimer

Institution: Montana State University Bozeman

Type: Poster

Subject: Health & Human Development

Status: Approved

Time and Location

Session: Poster 7
Date/Time: Tue 3:30pm-4:30pm
Session Number: 5110