Cohort study on the health effects of different plant-based diets

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

The COPLANT study is a multicenter cohort investigation that will recruit approximately 6,000 participants aged 18 to 69 in Germany and Austria from 2024 to 2027. It aims to explore the health benefits and risks associated with various plant-based diets, including vegan, vegetarian, pescetarian, and omnivorous diets, while also assessing social, ecological, and economic impacts. Participants will undergo detailed dietary assessments using a specialized app, alongside measurements of body composition, cardiovascular risk factors, and other health indicators. The study will also focus on specific population groups such as pregnant women and children, ensuring a comprehensive understanding of dietary impacts across different demographics.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* age between 18 and 69 years at recruitment (age-stratified recruitment in four age groups (18 to 29, 30 to 39, 40 to 49 and 50 to 69 years) which should be equally distributed across the four diets)
* following their current diet for at least one year
* health insured
* are willing to have blood taken (adults)
* are willing and able to complete questionnaires
* only at Berlin, Jena, Giessen and Karlsruhe sites: pregnant and breastfeeding women were recruited (shortened examination programm)
* only at the Regensburg, Heidelberg, Bonn and Vienna sites: are neither pregnant nor breastfeeding at the time of recruitment
* only at Berlin and Karlsruhe sites: children of adult participants (shortened examination programm without collection of blood, urine, and stool)
* are able to give informed consent to participate in the study
* have given their consent to participate in the COPLANT study

Exclusion Criteria:

* who can no longer be contacted
* who withdraw their consent to participate in the study

Where it's running

• University Vienna
  Vienna, Austria Recruiting
• Max Rubner-Institut
  Karlsruhe, Baden-Wurttemberg, Germany Recruiting
• Friedrich-Schiller University
  Jena, Thuringia, Germany Recruiting
• The German Federal Institut for Risk Assessment
  Berlin, Germany Recruiting
• University Bonn
  Bonn, Germany Recruiting
• University Regensburg
  Regensburg, Germany Recruiting

Study contacts

• Principal investigator: Ute Nöthlings, Prof — University of Bonn
• Study coordinator: Cornelia Weikert, Prof
• Email: Cornelia.Weikert@bfr.bund.de
• Phone: +49 30 184155000

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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.