Effect of Consuming Beans for One Month on Blood Lipids, Satiety, Intake Regulation and Body Weight

Not Applicable

Completed

• Conditions: Overweight; Diabetes; Obesity; Metabolic Syndrome; Hypertension
• Interventions: Other: navy beans added to regular diet

• Registration Number: NCT00741923
• Lead Sponsor: University of Toronto

Brief Summary

This project investigates the effect of regular consumption of commercially available processed white beans (5 cups per week) on food intake, body weight, blood pressure, satiety hormones and glycemic response over a 4-week period. We have chosen to provide participants with canned white beans, the most accessible and frequently consumed bean in North America. They are inexpensive, a good source of high quality nutrients and ready to eat. Based upon published literature and short-term studies conducted in our laboratory, we hypothesize that regular consumption of commercially available canned beans will increase satiety and improve the control of food intake, body weight, blood glucose and blood lipids.

Detailed Description

The metabolic syndrome is a clustering of chronic disease risk factors, including abdominal obesity, dyslipidemia, elevated blood pressure and elevated fasting blood glucose.

A main treatment for metabolic syndrome is lifestyle modification (alterations in diet and/or physical activity patterns) resulting in weight loss.

Beans are easily incorporated into the diet and may lead to the attainment and maintenance of healthy a body weight and improved metabolic control.

Canned baked navy beans (with tomato sauce) have a low glycemic response following consumption, however, whether this effect has long-term benefits on glycemic control requires further investigation.

OBJECTIVE

To determine the effect of consuming 5 cups per week of commercially available canned navy beans over 4 weeks on risk factors associated with the metabolic syndrome.

Subjects

Inclusion criteria: Men and women (n=16) between 35 and 55 years of age with a body mass index (BMI) of 27 to 40 kg/m2.

Exclusion criteria: smoking or any major surgery/medical condition within the last 6 months, use of medications that could interfere with the study outcomes, gastrointestinal, liver or kidney disease and women who were pregnant/lactating

Study Timeline

• Study Start: 2007-11
• Study First Submitted: 2008-08-25
• Study First Submitted QC: 2008-08-25
• Study First Posted: 2008-08-26
• Primary Completion: 2008-09
• Study Completion: 2009-12
• Status Verified: 2012-06
• Last Update Submitted: 2012-06-14
• Last Update Posted: 2012-06-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 14

Inclusion Criteria

• BMI 27-40 kg/m2

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Exclusion Criteria

• smokers and individuals who have prescribed medications over the past 6 months that could interfere with the study outcomes (i.e. statins, metformin). Breakfast skippers, those on a restricted energy diet or pregnant/lactating women

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Bean group	navy beans added to regular diet	A group consuming 5 cups/week of navy beans for a month

Primary Outcome Measures

Name	Time	Method
body weight, waist circumference, blood glucose, satiety hormones, and blood lipids, inflammation factor, and glycated haemoglobin	at the beginning and at the end of study

Trial Locations

Locations (1)

Department of Nutritional Sciences, University of Toronto; 🇨🇦 Toronto, Ontario, Canada