Dietary iron needs for U.S. adults

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Current Dietary Reference Intakes for iron are based on a small number of studies in European populations, so this study will apply the stable iron isotope dilution technique in a representative sample of U.S. adults. Participants receive a safe, orally administered stable iron isotope (or have previously received one and completed equilibration) and are followed during a 12-week monitoring period. Blood samples are collected every four weeks to measure isotopic composition and infer iron absorption and losses. The resulting data will be used to inform updates to U.S. dietary iron guidelines.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Males and premenopausal females age 18-50 y
* Previously participated in an iron stable isotope study or willing to consume an oral stable iron isotope and undergo a one-year equilibration period
* Willing to refrain from iron-containing supplements for the duration of the study
* Willing to refrain from tobacco smoking for the duration of the study
* Have not donated blood 3 months prior to the start of the study and willing to refrain from donating blood for the duration of the study
* Willing to have blood stored for future use
* Able and willing to comply with study requirements and consent to participate

Exclusion Criteria:

* Females: pregnant or lactating or plans to become pregnant during the study period
* Inability to provide informed consent and engage in informed consent procedures
* Plans to relocate outside the study area

Where it's running

• LSU Pennington Biomedical Research Center
  Baton Rouge, Louisiana, United States Recruiting
• Cornell University
  Ithaca, New York, United States Recruiting

Study contacts

• Study coordinator: Stephen Hennigar, PhD
• Email: stephen.hennigar@pbrc.edu
• Phone: 225-763-2612

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.