Effects of Dietary Protein Intake From Beef/Pork and Soy/Legumes on Appetite, Mood, and Weight Loss

Purdue University1 site in 1 country37 target enrollmentJanuary 2010

ConditionsAppetite Mood Weight Loss

Overview

Phase: Not Applicable
Intervention: Not specified
Conditions: Appetite
Sponsor: Purdue University
Enrollment: 37
Locations: 1
Primary Endpoint: Increasing protein intake from lean beef/pork or soy/legumes sources will result in progressively decreased daily composite hunger and desire to eat, and increased fullness. The responses will not be different between groups of subjects.
Status: Completed
Last Updated: 12 years ago

Overview Investigators Eligibility Criteria Outcomes Sites Similar Trials

Overview

Brief Summary

The primary aims of this study are to assess the effects of habitual dietary protein intakes across the acceptable macronutrient distribution range with lean beef/pork or soy/legumes as the predominate sources of protein on indices of daily appetite and mood, and on postprandial appetite, mood, energy expenditure, and glycemic responses during energy-restricted weight loss in overweight adults.

Registry

clinicaltrials.gov

Start Date

January 2010

End Date

September 2011

Last Updated

12 years ago

Study Type

Interventional

Study Design

Parallel

Sex

All

Investigators

Sponsor

Purdue University

Responsible Party

Principal Investigator

Wayne Campbell

Wayne Campbell, Ph.D.

Purdue University

Eligibility Criteria

Inclusion Criteria

•Age range: 21 years and older
•Body mass index between 27.0-36.9 kg/m2
•Non-smoking (within the last 6 months)
•Weight stable (\< 3 kg (\~7 lbs) weight gain or loss within last 3 months)
•Energy need for weight maintenance 1950-2750 kcal/day
•Not dietary restrained
•Menstruating women not pregnant or lactating
•Constant habitual activity patterns (within last 3 months)
•No Acute Illness (or have chronic diseases known to influence protein or energy metabolism)
•Non-diabetic

Exclusion Criteria

•Age: \<21 years
•Body mass index: outside of the 27.0-36.9 kg/m2 range
•Smoker (currently or within the last 6 months)
•Gained or lost \> 3.0 kg (7 lbs) within the last 3 months
•Energy need for weight maintenance \< 1950 or \> 2750 kcal/day
•Dietary restrained (≥ 14 on Three Factor Eating Questionnaire)
•Pregnant, lactating, or non-menstruating women
•Clinically diagnosed as a diabetic, or with liver or kidney disease/dysfunction, or osteoporosis
•Clinically abnormal blood profiles as identified by our study physician, Arthur Rosen, MD
•Hypertensive

Outcomes

Primary Outcomes

Increasing protein intake from lean beef/pork or soy/legumes sources will result in progressively decreased daily composite hunger and desire to eat, and increased fullness. The responses will not be different between groups of subjects.

Time Frame: 14 weeks

Secondary Outcomes

Increasing the protein content of a test will result in progressively more robust and sustained changes in postprandial appetite and energy expenditure and blunted glycemic response. The responses will not be different between the groups of participants.(14 weeks)