Comparing nutritional and metabolic health of vegetarian and omnivorous adults in Portugal

VeggieNutri - Nutritional and Metabolic Status of Vegetarian and Omnivorous Portuguese Adults

Observational Universidade do Porto · NCT05408962

This study looks at the nutritional and health differences between vegetarian and meat-eating adults in Portugal to see how their diets affect their overall well-being.

Quick facts

Study typeObservational
Enrollment400 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorUniversidade do Porto Academic / other
Locations1 site (Porto)
Trial IDNCT05408962 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess and compare the nutritional and metabolic profiles of vegetarian and omnivorous adults in Portugal. It will involve a cross-sectional analysis of 400 healthy participants aged 18-64, categorized into omnivorous, lacto-ovo vegetarian, and vegan groups. Data will be collected through blood and urine samples, anthropometric measurements, and validated questionnaires regarding dietary habits and lifestyle. The study seeks to provide insights into the health implications of different dietary patterns as vegetarianism gains popularity in the country.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy adults aged 18 to 64 who have adhered to their reported dietary regimen for at least one year.

Not a fit: Patients with metabolic, digestive, renal, haematological, endocrine, oncological disorders, food intolerances, or eating disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the health benefits and nutritional quality of vegetarian diets, potentially guiding dietary recommendations.

How similar studies have performed: Other studies have shown varying success in assessing the health impacts of vegetarian diets, indicating that while some benefits are documented, results can differ based on specific populations and methodologies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* being a healthy adult
* being aged between 18 and 65 years
* having the reported dietary regimen for at least 1 year

Exclusion Criteria:

* being free from metabolic disorders
* being free from digestive disorders
* being free from renal disorders
* being free from haematological disorders
* being free from endocrine disorders
* being free from oncological diseases
* being free from food intolerances
* being free from eating disorders

Where this trial is running

Porto

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Diet, VegetarianDiet, VeganNutritional StatusMetabolic ProfileVegetarianVeganDiet qualityMetabolic profile
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.