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Purple bacteria: the next superfood? small study tests safety and protein absorption

NCT ID NCT07613983

Knowledge-focused Sponsor: Université Catholique de Louvain 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether healthy adults can safely digest and absorb protein from purple bacteria. Twelve participants ate a dairy product with or without purple bacteria, and researchers measured amino acid levels in their blood over four hours. The goal was to see if purple bacteria could be a viable protein source. The study is complete, but results are not yet reported.

What this could mean

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

Active substance
Purple bacteria-enriched dairy product
What this could lead to
If successful, this could point toward a new, sustainable protein source for human nutrition.
What could go wrong
This is a very small, early-stage safety and metabolism study in healthy volunteers. It does not test any disease treatment, and results may not apply to broader populations.

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

12 people

The number who actually took part.

Started

Apr 2026

Finished

May 2026

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

18 to 50 years

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: * Adults aged 18 to 50 years * Body mass index between 18 and 30 kg/m² * Healthy participants * Non-smokers * Women of childbearing potential using effective contraception * Able to understand and speak French * Willing and able to comply with study procedures Exclusion Criteria: * Pregnancy or breastfeeding * Use of medications or dietary supplements incompatible with study participation * Any medical condition considered by the investigator to interfere with study participation or interpretation of results * Vegan or vegetarian diets

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As listed by the trial registrant

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

Healthy volunteers

Contacts and locations

Locations

  • Center of Investigation in Clinical Nutrition (CICN)

    Louvain-la-Neuve, 1348, Belgium

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