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Can a Pulse-Powered plate slow the clock on aging?

NCT ID NCT05577858

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 17, 2026 · Last updated Sep 18, 2026 · Updated 1 time

Summary

Researchers are testing whether a vegetarian diet built around pulses like beans, lentils, and chickpeas can improve health markers in adults aged 60 and older. Participants eat both a pulse-based diet and a meat-based diet following dietary guidelines, switching between them over 18 weeks. The study measures changes in gut bacteria, blood sugar, body composition, and hundreds of other health biomarkers to see how plant protein affects the body.

What this could mean

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

Active substance
a lacto-ovo-vegetarian diet with pulses as the main protein source
What this could lead to
If it works, this could show that swapping meat for pulses supports healthier aging and lowers the risk of chronic disease in older adults.
What could go wrong
This is a small feeding study in healthy older adults, so the results may not apply to other age groups or people with existing conditions. Diet studies also struggle to separate the food itself from other lifestyle factors.

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

76 people

The number who actually took part.

Started

Nov 2022

Finished

Dec 2023

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

60 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 routine physical in the past 12 months, current healthy status * Normal HbA1C, not underweight * Age 60 years or more, all races, both sexes and all education level * Do not have any special dietary requirements and willing to consume vegetarian diet * Willingness to comply with the study protocol, including on-site meal consumption and sample/data collection. Exclusion Criteria: * Probiotic, long-term antibiotic, and tobacco/drug/alcohol use * Not on any special diet within 3 months of recruitment * Impaired kidney functions * 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 had not had a routine health checkup during the 12 months prior to recruitment. * 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 lifestyle

Contacts and locations

Locations

  • South Dakota State University, Wagner Hall 416

    Brookings, South Dakota, 57007, United States

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