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Algae power: new supplement targets gut, anxiety, and immune health

NCT ID NCT06425094

Symptom relief Sponsor: Colorado 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a daily microalgae extract (Tetrasol) in 62 healthy adults with mild stomach issues to see if it helps gut health, anxiety, and immune function. Participants took the supplement for 4 weeks, and researchers measured symptoms, stress levels, and safety through blood and stool tests. The goal was to see if this natural supplement is safe and effective for easing digestive discomfort and stress.

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

62 people

The number who actually took part.

Started

Feb 2024

Finished

Jan 2025

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 55 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: * Healthy, normal to overweight (BMI of 18.0-29.9) adults between 18-55 years of age with mild to moderate gastrointestinal distress confirmed by one positive response to the Rome IV criteria (Appended). Exclusion Criteria: * BMI \>30.0 or \<18.0 * Smoking or other use of tobacco products * Diagnosed intestinal diseases such as Celiac, Crohn's Disease, Ulcerative Colitis, or Gastrointestinal Cancers * Pregnant or breastfeeding individuals * Regular use of NSAIDs or MAO inhibitors * Clinically diagnosed mental health disorders (clinical depression, bipolar disorder, etc.)

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Conditions

The condition(s) this trial relates to.

anxiety anxiety disorder

As listed by the trial registrant

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

Anxiety Gastrointestinal problem Gastrointestinal symptoms Stress

Contacts and locations

Locations

  • Food and Nutrition Clinical Research Lab(FNCRL), Colorado State University

    Fort Collins, Colorado, 80526, United States

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Other studies related to the condition(s) this trial covers.