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

NCT ID: NCT00741923

Last Updated: 2012-06-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 14 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2007-11-30
• Study Completion Date: 2009-12-31

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

Conditions

Overweight; Obesity; Metabolic Syndrome; Diabetes; Hypertension

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: PREVENTION
• Blinding Strategy: NONE

Study Groups

Bean group

A group consuming 5 cups/week of navy beans for a month

Group Type: EXPERIMENTAL

navy beans added to regular diet

Intervention Type: OTHER

5 cups per week of commercially available white beans for 4-weeks

Interventions

navy beans added to regular diet

5 cups per week of commercially available white beans for 4-weeks

Intervention Type: OTHER

Other Intervention Names

Heinz beans

Eligibility Criteria

Inclusion Criteria

• BMI 27-40 kg/m2

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

• Minimum Eligible Age: 35 Years
• Maximum Eligible Age: 55 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Ontario Ministry of Agriculture, Food and Rural Affairs

OTHER_GOV

Sponsor Role: collaborator

University of Toronto

OTHER

Sponsor Role: lead

Responsible Party

G. Harvey Anderson

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Harvey Anderson, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

University of Toronto

Locations

Department of Nutritional Sciences, University of Toronto

Toronto, Ontario, Canada

Countries

Canada

Other Identifiers

BOW-2008

Identifier Type: -

Identifier Source: secondary_id

OMAF-HEINZbeans

Identifier Type: -

Identifier Source: org_study_id