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Seaweed crackers: a superfood delivery system?

NCT ID NCT07508735

Knowledge-focused Sponsor: National Research Council, Spain 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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how well healthy adults absorb certain nutrients from crackers made with seaweed (Himanthalia elongata). Ten volunteers will eat both seaweed crackers and plain crackers on different days, and their blood and urine will be tested. The goal is to see if these nutrients can be effectively delivered through a simple snack.

What this could mean

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

Active substance
Seaweed (Himanthalia elongata) fortified cracker
What this could lead to
If successful, this could help design foods that deliver seaweed nutrients more effectively.
What could go wrong
This is a very small, early-stage trial with only 10 healthy people. It measures absorption, not health effects, so results may not apply to the general population.

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

10 people

The number who actually took part.

Started

Mar 2026

Expected to finish

Jun 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Ages

18 to 45 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: * Body mass index: 18-30 Kg/m2 Exclusion Criteria: * Following a vegetarian diet * Being pregnant * Suffering from digestive diseases (such as irritable bowel syndrome, gastrointestinal ulcers, etc.) * Having a history of hypersensitivity or allergies to components of the study foods * Following any medication regimen * Currently taking or having recently taken antibiotics * Having donated blood within the three months prior to the study

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As listed by the trial registrant

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

Bioavailability and auc Bioavailability heathy volunteers

Contacts and locations

Locations

  • Institute of Food Science, Technology and Nutrition, Spanish National Research Council (ICTAN-CSIC)

    Madrid, Madrid, 28040, Spain

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