Effects of consuming ounce equivalent portions of fresh pork versus nuts, beans, and eggs, as defined by the Dietary Guidelines for Americans on essential amino acid substrate availability for protein anabolism in older adults

Protein Sources and Blood Amino Acids Study

Effects of consuming ounce equivalent portions of fresh pork versus nuts, beans, and eggs, as defined by the Dietary Guidelines for Americans on essential amino acid substrate availability for protein anabolism in older adults
Recruiting
55 years - 75 years
All
Phase N/A
1 Location

Brief description of study.

This study is looking at how different sources of protein influence blood amino acids (building blocks for proteins in the body).

Detailed description of study

If eligible, participants will be asked to come to Stone Hall at Purdue’s main campus in West Lafayette for 1 screening day and 4 testing days during the study. The screening will take 30 minutes.Testing days involve consuming a meal and timed blood draws from an IV line over approximately 5.5 hours. Participants will be asked to consume a provided dinner the night before each testing day. There will be no added cost to participate in the study.
Seeking older adults who are:
Age 55-75
BMI between 20-35
Be weight stable (± 4.5 kg/10 lbs in previous 3 months)
Current non-smokers
Not diagnosed with diabetes
Willing to travel to Purdue University for study visits

Participants will be paid for their participation.

Eligibility of study

You may be eligible for this study if you meet the following criteria:

  • Conditions: healthy,overweight,obese
  • Age: 55 years - 75 years
  • Gender: All

Inclusion Criteria
Age 55-75 years 
Have a BMI between 20 and 35
Be weight stable (± 4.5 kg/10 lbs in previous 3 months)
Not currently (or within 3 months pre-study) following a vigorous exercise regimen of > 3 hours per week
Not be diabetic
Be non-smoking
Willing to consume study foods and travel to the testing facility for study visits
 
Exclusion Criteria
Age <55 or >75 years
BMI <20 or >35
Weight loss or gain > 4.5 kg/10 lbs in the previous 3 months
Following a stable intensive physical activity regimen during the previous 3 months for > 3 hours per week of moderate or high intensity exercise, resistance, or aerobic training.
Pregnant or lactating
Diabetic
Smoking

This study investigates how different sources of protein affect the levels of amino acids in the blood. Amino acids are the building blocks of proteins, which are essential for the body's functions. The study aims to understand the impact of consuming various protein sources on these amino acids.

Participants will attend a screening day and four testing days. During testing days, participants will consume a meal and have their blood drawn through an IV line over about 5.5 hours. They will also need to eat a provided dinner the night before each testing day. There is no cost to participate.

  • Who can participate: Adults aged 55 to 75 years with a BMI between 20 and 35 can participate. They must be weight stable, non-smokers, not have diabetes, and not currently following a vigorous exercise regimen. Participants should be willing to travel to Purdue University for study visits.
  • Study details: Participants will consume study meals and have blood drawn on testing days. A placebo is not involved in this study. Participants must be willing to consume study foods.
  • Study Visits: The study requires 5 visits.
Updated on 19 Feb 2024. Study ID: IRB-2019-354 (PURDUE)

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