A dietary and behavioral intervention to improve health and sustainability

Switching to a Healthy and Sustainable Diet for Planetary and Human Health

NA · Chalmers University of Technology · NCT06973408

This study is testing a new lifestyle program that combines diet tips and support to see if it can help people improve their health and the environment better than regular diet advice alone.

Quick facts

PhaseNA
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorChalmers University of Technology (other)
Locations1 site (Gothenburg)
Trial IDNCT06973408 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a comprehensive lifestyle intervention that includes dietary advice, behavioral support, and provision of key foods. It aims to improve nutritional status, metabolic risk factors, and promote planetary sustainability among participants. A total of 300 individuals will be recruited from diverse socioeconomic backgrounds in Gothenburg and will undergo a twelve-week randomized, controlled intervention. The study will compare the optimized intervention against standard dietary advice and behavioral support alone.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-70 with a BMI between 25-35 who are willing to adhere to dietary changes.

Not a fit: Patients with recent cardiovascular events, diabetes, or severe gastrointestinal issues may not benefit from this intervention.

Why it matters

Potential benefit: If successful, this intervention could significantly enhance dietary habits and metabolic health for participants, leading to improved overall health outcomes.

How similar studies have performed: Previous studies have shown that lifestyle interventions can effectively improve dietary behaviors and metabolic health, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18-70 years
* Body mass index 25-35 kg/m2
* Stable dietary patterns at the entry to the study (no specific dieting the last 4 weeks).
* Willingness to adhere to advised diet pattern and to consume provided key foods.
* Medications stable for the previous 14 days of relevant medicines
* Access to a -18⁰ C freezer to store key foods at home.
* Signed informed consent

Exclusion Criteria:

* Currently having an infection or other relevant illness.
* Cardiovascular events (myocardial infarction or stroke) during the previous 6 months. To be included, the disease needs to be stable.
* Diagnosis of diabetes (any type).
* Blood Pressure (BP): ≥185/105 mmHg.
* Serum Cholesterol (S-Chol): ≥8 mmol/L.
* Blood Glucose (B-Glucose): fasting value \>7 mmol/L.
* Currently on GLP-1 receptor agonists.
* History of stomach or gastrointestinal diagnoses (inflammatory bowel disease, Crohn's disease, hepatitis, malabsorption, celiac disease etc.).
* IBS- if severe and recent (\<0.5year)?
* Previous colostomy, bowel resection, bariatric surgery or other major gastrointestinal surgery.
* Renal or liver failure (creatinine \<1.7 mg/dl and alanine aminotransferase/ aspartate aminotransferase \> 2 times than normal values (ASAT, ALAT), respectively).
* Anemia or Hemoglobin (Hb): \<100 g/L
* Blood donation (or participation in a clinical study with blood sampling) within 30 days prior to inclusion
* Currently on a specific diet.
* A diet incompatible with protocol diets such as strict vegan/vegetarian.
* Food allergies or intolerances to food items included in the intervention.
* High level of regular physical activity at baseline - scale 4 on SG-PALS.
* History of drug or alcohol abuse.
* Not able to understand written or spoken Swedish.
* Any other reason for lack of suitability for participation in the trial, as judged by the principal investor and/ or the clinical investigator.
* Pregnant or lactating or planning to become pregnant during the study period.
* Involved in another potentially interfering research study.

Where this trial is running

Gothenburg

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.

View on ClinicalTrials.gov →

Conditions: Dietary Behaviour, Dietary Intakes, Dietary Intervention, Metabolic Diseases, Blood Lipid Profiles, Blood Glucose Metabolism, Diet, Healthy, Cardiometabolic health

Last reviewed 2026-05-15 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.