Effect of a vegetarian diet on immunity in heart attack patients and healthy volunteers

Effect of a Vegetarian Diet on Innate Immunity in Patients With Myocardial Infarction and in Healthy Volunteers (FRESH-MI Study)

Not applicable Interventional Radboud University Medical Center · NCT06209723

This study is testing whether a vegetarian diet can improve immunity in people who have had a heart attack and their healthy partners.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorRadboud University Medical Center Academic / other
Drugs / interventionschemotherapy
Locations1 site (Nijmegen)
Trial IDNCT06209723 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate how a vegetarian diet influences innate immunity in patients who have recently experienced a myocardial infarction and their healthy partners. Participants will be randomly assigned to either a vegetarian diet or their usual diet for five weeks, followed by a six-week stabilization period. Blood samples will be collected at various time points to analyze inflammatory markers, and participants will complete questionnaires to assess dietary adherence and willingness to maintain a vegetarian lifestyle. The study employs a prospective randomized open label blinded endpoint (PROBE) design to ensure robust results.

Who should consider this trial

Good fit: Ideal candidates include individuals who have experienced an acute myocardial infarction within the past week and have a body mass index between 18.5 and 35.

Not a fit: Patients with a history of diabetes, previous myocardial infarction, or those on immunomodulatory drugs may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into dietary interventions that enhance immune function and recovery in heart attack patients.

How similar studies have performed: While dietary interventions have been explored in various contexts, this specific approach focusing on vegetarian diets in myocardial infarction patients is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria for patients:

* Acute myocardial infarction (STEMI/NSTEMI) with a clear culprit lesion on angiography and successful primary percutaneous coronary intervention (PCI) \<1 week before randomisation
* Body mass index between 18.5 and 35 kg/m2
* Written informed consent

Inclusion Criteria for healthy volunteers (life partners / souses)

* Body mass index between 18.5 and 35 kg/m2
* Written informed consent

Exclusion Criteria for patients and healthy volunteers:

* Already on a vegetarian or vegan diet
* Previous myocardial infarction
* Diabetes Mellitus
* Medical history of any disease associated with immune deficiency (either congenital or acquired, including chemotherapy, chronic steroid use, organ transplant)
* Use of immunomodulatory drugs
* Vaccination less than one month before start of intervention
* Clinically significant infections within 1 months prior to start of intervention (defined as fever \>38.5 degrees Celsius)
* Active malignant haematological disease
* Known eating disorder (e.g., Anorexia nervosa, Bulimia nervosa)

Exclusion Criteria for healthy volunteers

\- Use of lipid lowering therapy

Where this trial is running

Nijmegen

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 Myocardial Infarction
Last reviewed 2026-06-13 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.