The researchers' mission is to promote healthier eating behavior and to reduce costs associated with healthcare. The purpose of this study is to evaluate the effects of mailing randomly selected participants a letter promoting a plant-based diet. Depending on the experimental condition, participants may additionally receive a free documentary, Forks Over Knives, and they may also get letters which use commitment- or prevention-focused messages to encourage watching the documentary and changing their eating behavior. The researchers hypothesize that receiving the documentary will be associated with lower insurance claims and improved health outcomes one and two years later. The researchers also hypothesize that using either commitment- or prevention-focused messages will also contribute to lower insurance claims and improved health outcomes compared to experimental conditions where materials did not include these messages. This study will help the researchers design evidence-supported programs that can improve people's health.
Age range
18 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Medical Cost in US Dollars From One Year Before to One Year After Intervention
Timeframe: 2 years
Number of Visits From One Year Before to One Year After Intervention
Timeframe: 2 years
Number of Prescriptions From One Year Before to One Year After Intervention
Timeframe: 2 years
Number of Unique Prescribed Medication From One Year Before to One Year After Intervention
Timeframe: 2 years
Body Mass Index From One Year Before to One Year After Intervention
Timeframe: 2 years
Systolic Blood Pressure From One Year Before to One Year After Intervention
Timeframe: 2 years
Diastolic Blood Pressure From One Year Before to One Year After Intervention
Timeframe: 2 years