Skip to main content
OpenTrials
Completed

NCT Number: NCT05773456

Iodine Status After Intake of Sushi and Seaweed Salad

Seaweed is becoming increasingly popular in the Western part of the world, especially sushi wrapped in nori and seaweed salad, also called wakame. There are limited data on the iodine content of different seaweed products in the Norwegian Food composition table. Furthermore, there is limited available research regarding in vivo bioavailability of iodine from seaweeds. The objective of this study is to assess whether iodine from a sushi meal (with nori, Porphyra spp), and a wakame salad (Undaria pinnatifida) has similar bioavailability as a potassium iodide reference supplement of similar iodine content.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Iodine Deficiency

Age range

18 year–40 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

University of Bergen

Bergen, 5021, Norway

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • healthy women aged 18 to 40 years

Exclusion criteria

  • pregnant or lactating
  • known thyroid disease or thyroid autoimmunity,
  • planning to conceive,
  • known kidney problems or kidney disease.
  • women with coeliac disease could not participate due to possible gluten exposure from the wakame salad

Treatment and study plan

Sushi and wakame salad

Other

One serving of mixed sushi and wakame salad

Primary outcomes

  1. Urinary iodine concentration during 48 hours

    Time frame: 48 hours

    Urinary iodine concentration after ingestion of the intervention/supplement during 48 hours by fixed time-intervals

  2. Bio-availability of iodine in the intervention/supplement

    Time frame: 48 hours

    Calculation of the bio-availability of iodine in the intervention/supplement

Sponsors and collaborators

Lead sponsor

University of Bergen

Other

Collaborators

  • Institute of Marine Research

Registry information

Official study title

Iodine Status at Several Time Points During 48 Hours After Intake of Sushi and Seaweed Salad- a Randomized Crossover Trial

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Mar 17, 2023
Registry last updated
Apr 12, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.