Dietary Protein Requirement of Elderly Men and Women

Not Applicable

Completed

• Conditions: Age
• Interventions: Other: Lower Protein; Other: Medium Protein; Other: Higher Protein

• Registration Number: NCT00812500
• Lead Sponsor: Purdue University

Brief Summary

The purpose of this study was to assess the effect of age on the estimated average requirement and adequate allowance for dietary protein.

Detailed Description

Not available

Study Timeline

• Study Start: 2002-05
• Primary Completion: 2003-05
• Study Completion: 2006-01
• Status Verified: 2008-12
• Study First Submitted: 2008-12-18
• Study First Submitted QC: 2008-12-19
• Study First Posted: 2008-12-22
• Last Update Submitted: 2013-09-23
• Last Update Posted: 2013-09-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 48

Inclusion Criteria

• Age: 21-46 years, 63-81 years old
• Not diagnosed with diabetes or metabolic syndrome
• Clinically normal blood laboratory values

Exclusion Criteria

• Age: 21 years of younger, 47-62 years old, and 82 years and older
• BMI: 20-29 kg/m
• Weight stable: <2kg change within the last 3 months
• Physical Activity: constant habitual pattern, no deviation >1x week of 30/minute sessions within the last 3 months

Clinically abnormal values:

• Blood
• Urine

Also, exclude any:

• Using meds that would influence appetite
• Using any anti-inflammatory steroid medications
• Has a joint replacement
• A medical condition that might place them at risk for participating in the study or interfere with successful completion of the study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
3	Lower Protein	Young women, age 21-46 years.
3	Medium Protein	Young women, age 21-46 years.
3	Higher Protein	Young women, age 21-46 years.
4	Lower Protein	Old women, age 63-81 years.
4	Medium Protein	Old women, age 63-81 years.
4	Higher Protein	Old women, age 63-81 years.
1	Lower Protein	Young men, age 21-46 years.
1	Medium Protein	Young men, age 21-46 years.
1	Higher Protein	Young men, age 21-46 years.
2	Lower Protein	Old Men, age 63-81 years.
2	Medium Protein	Old Men, age 63-81 years.
2	Higher Protein	Old Men, age 63-81 years.

Primary Outcome Measures

Name	Time	Method
To determine the dietary protein requirement of older men and women.	57 days

Secondary Outcome Measures

Name	Time	Method
What is the lowest amount of protein that a man or women should eat each day to help him or her stay healthy?	57 days

Trial Locations

Locations (1)

Purdue University; 🇺🇸 West Lafayette, Indiana, United States