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Can adding lean pork to a Plant-Based diet boost health in older adults?

NCT ID NCT05581953

NEW Prevention Sponsor: South Dakota State University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers are testing whether adding lean pork to a plant-forward diet improves iron levels, muscle fitness, and markers of healthy aging in adults 65 and older. Participants eat meals provided by the study for 18 weeks, alternating between a plant-based diet with pork and one without. The trial measures over 250 outcomes, including blood nutrients and physical function, to see how diet affects age-related health risks.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
a diet that adds lean pork to a plant-forward eating pattern
What this could lead to
If it works, this could show that a plant-forward diet with lean pork helps older adults maintain iron levels and muscle fitness, guiding dietary advice for healthy aging.
What could go wrong
The study is small and short, so results may not apply to everyone or last. Diet studies also struggle to separate the effects of one food from overall lifestyle.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

59 people

The number who actually took part.

Started

Nov 2022

Finished

Jan 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

65 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Generally good health status based on one routine physical in the past 15 months * Normal HbA1C, weigh 110 lb or more * Age 65 years or more, generally healthy, all races and both sexes * Generally practicing a meat-based dietary pattern, do not have any special dietary requirement * Willingness to comply with the study protocol, including on-site meal consumption and sample/data collection. * Willing to consume pork as sole meat source during the feeding study. Exclusion Criteria: * Tobacco/drug/alcohol use * Not on any special diet within 3 months of recruitment, and do not have any intention to lose weight. * Active history of cancer, diabetes, heart, liver, and kidney diseases * major gastrointestinal disorders in the past 3 months * history of heart attacks or stroke * Unable to meet in-person visit requirements for dining, picking up meals, and tests * Any mental health condition that would affect the ability to provide written informed consent. * If they were unwilling to abstain from taking certain nutritional supplements, alcohol, or non-study foods during the study period.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy aging

Contacts and locations

Locations

  • South Dakota State University, Wagner Hall 416

    Brookings, South Dakota, 57007, United States

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