According to Gram Research analysis, a randomized controlled trial of 206 Navajo Nation patients with heart failure found that an 8-week program of medically tailored traditional Navajo meals reduced hospitalizations and emergency room visits by 28% compared to standard dietary advice. Patients in the meal program group had only 40.6% hospital or emergency visits versus 57% in the standard care group, with benefits including improved quality of life, better food security, and lower blood pressure.
A new study shows that eating traditional Navajo foods as part of a heart health program can keep people with heart failure out of the hospital. Researchers worked with the Navajo Nation to create a meal program that combined healthy eating for the heart with traditional foods and recipes. Over 200 patients with heart failure received either the special meal program or regular dietary advice. Those who ate the traditional meals had 40% fewer hospital visits and emergency room trips compared to the other group. The program also helped people feel better, reduced food insecurity, and lowered blood pressure.
Key Statistics
A 2026 randomized controlled trial of 206 Navajo Nation patients with heart failure found that medically tailored traditional Navajo meals reduced hospitalizations and emergency room visits from 57% to 40.6% over 90 days, representing a 28% reduction in risk.
In the MUTTON-HF trial published in JAMA Internal Medicine, only 12.3% of heart failure patients receiving traditional Navajo meals were hospitalized compared to 26% receiving standard dietary advice—a 53% reduction in hospitalization rates.
The 2026 MUTTON-HF study of 206 Navajo Nation patients showed that medically tailored traditional meals reduced heart failure-specific hospitalizations from 13% to 3.8%, while also significantly improving food security and reducing financial strain.
Research from the MUTTON-HF trial demonstrated that an 8-week Indigenous food intervention improved Kansas City Cardiomyopathy Questionnaire scores and lowered blood pressure in heart failure patients, with adverse events remaining uncommon in both study groups.
The Quick Take
- What they studied: Whether a meal program using traditional Navajo foods could reduce hospital visits and emergency room trips for people with heart failure
- Who participated: 206 adults with heart failure (average age 66) from two rural Navajo Nation health clinics. Most participants were American Indian. All had been to the hospital or emergency room at least once in the previous year because of their heart condition
- Key finding: Patients who received 8 weeks of traditional Navajo meals had 40.6% hospital or emergency room visits compared to 57% in the regular advice group—a 28% reduction in risk
- What it means for you: If you have heart failure and are part of a Native American community, eating traditional foods prepared in heart-healthy ways may help you avoid hospitalizations. This approach honors your culture while protecting your health. Talk to your doctor about whether this type of program is available in your area
The Research Details
This was a randomized controlled trial, which is one of the strongest types of medical research. Researchers recruited 206 patients with heart failure from two Indian Health Service clinics in the Navajo Nation between May and November 2025. They randomly assigned half the patients to receive 8 weeks of medically tailored meals using traditional Navajo foods and recipes, while the other half received standard dietary advice. All patients were followed for 12 weeks total to track hospitalizations, emergency room visits, and other health measures.
The study was designed using community-based participatory methods, meaning Navajo community members worked alongside researchers to create the meal program. This ensured the food was both culturally meaningful and medically appropriate for heart health. The meals addressed a real problem in Indigenous communities: nutrition insecurity (not having reliable access to healthy food) is a major reason why Native Americans have higher rates of heart disease and heart failure.
Researchers measured several outcomes including hospital visits, emergency room visits, quality of life using a standardized questionnaire, food insecurity, financial strain, blood pressure, and weight. The study was conducted in a real-world setting (pragmatic design), meaning it tested whether the program works in everyday practice, not just in controlled laboratory conditions.
This research approach is important because it combines two powerful elements: medical science and cultural respect. Many previous nutrition studies have ignored the cultural preferences and traditional foods of Indigenous communities, making recommendations that don’t fit people’s lives. By designing a program that uses traditional Navajo foods while meeting heart health needs, researchers created something people would actually want to eat and stick with. The community-based approach also means the findings are more likely to work in real Navajo communities, not just in research settings.
This study has several strengths: it was published in JAMA Internal Medicine, a top medical journal; it used randomization to fairly assign patients to groups; it had a reasonable sample size of 206 patients; and it measured real-world outcomes like hospitalizations rather than just lab values. The study was completed recently (2025-2026) so findings are current. However, it was open-label, meaning patients and doctors knew who was getting the meal program, which could influence results. The study only lasted 12 weeks, so we don’t know if benefits continue long-term. Results are specific to the Navajo Nation and may not apply to other Indigenous groups or non-Indigenous populations
What the Results Show
The main finding was striking: patients who received the traditional Navajo meal program had significantly fewer hospital and emergency room visits. In the meal program group, 40.6% of patients had at least one hospitalization or emergency room visit within 90 days, compared to 57% in the standard advice group. This represents a 28% reduction in risk—meaning the meal program cut the chance of needing hospital care by more than a quarter.
When researchers looked at hospitalizations separately from emergency room visits, the benefit was even clearer for actual hospital admissions. Only 12.3% of patients in the meal program group were hospitalized compared to 26% in the standard advice group—a 53% reduction. For heart failure-specific hospitalizations, the difference was even more dramatic: 3.8% in the meal program group versus 13% in the standard advice group.
Beyond hospital visits, patients in the meal program group reported better quality of life, measured using a standard heart disease questionnaire. They also experienced significant improvements in food security (having reliable access to enough food), reduced financial strain, lower blood pressure, and weight loss. These improvements suggest the program helped people in multiple ways, not just preventing hospitalizations.
The study found that food insecurity—a major problem in many Indigenous communities—improved significantly in the meal program group. This is important because when people don’t have reliable access to healthy food, their health suffers. By providing medically tailored meals, the program directly addressed this barrier. Financial strain also decreased in the meal program group, suggesting the program may have reduced overall healthcare costs and out-of-pocket expenses. Blood pressure decreased in the intervention group while remaining stable in the control group, which is important because high blood pressure is a major risk factor for heart failure complications. Weight changes were also favorable in the meal program group. Importantly, adverse events were uncommon in both groups, showing the program was safe
Previous research has shown that nutrition insecurity is a major driver of poor heart health in Indigenous communities, but few studies have tested culturally tailored solutions. Most heart failure dietary recommendations come from research in non-Indigenous populations and don’t account for traditional foods or cultural preferences. This study builds on growing evidence that culturally appropriate interventions work better than one-size-fits-all approaches. The magnitude of benefit (28% reduction in hospitalizations) is comparable to or better than many pharmaceutical interventions for heart failure. The study also aligns with the emerging field of ‘Food is Medicine’ interventions, which recognize that food can be as powerful as medication for preventing disease
The study lasted only 12 weeks, so we don’t know if benefits continue after the meal program ends or how long they last. The study was open-label, meaning patients and doctors knew who was receiving the meal program, which could create bias (people might try harder if they know they’re in the special program). The study included only patients from the Navajo Nation, so results may not apply to other Indigenous groups or non-Indigenous populations. The control group received standard dietary advice rather than a placebo meal program, so we can’t separate the benefit of traditional foods from the benefit of receiving any special meal program. The study didn’t measure whether patients continued eating traditional foods after the program ended. Finally, the study had a relatively small sample size compared to some large clinical trials, though 206 is reasonable for this type of research
The Bottom Line
If you have heart failure and are part of a Native American community, ask your doctor about medically tailored meal programs that use traditional foods. The evidence from this study is strong (high confidence) that such programs can reduce hospitalizations and improve quality of life over an 8-week period. Work with your healthcare team to identify programs in your area or advocate for creating one. This approach is safe and addresses multiple health problems at once: it improves nutrition, reduces food insecurity, lowers blood pressure, and prevents hospitalizations. For healthcare systems serving Indigenous communities, implementing similar programs is strongly supported by this evidence
This research is most relevant for Native American adults with heart failure, particularly those in rural areas with limited access to specialty care. It’s also important for healthcare providers, tribal health systems, and policymakers working in Indigenous communities. Family members of people with heart failure should know about this option. Non-Indigenous people with heart failure may benefit from the general principle that culturally appropriate, traditional foods can support heart health, though this specific program was designed for Navajo communities. People without heart failure but interested in preventing it may also benefit from incorporating traditional foods into their diet
The study showed benefits within 8 weeks of receiving the meal program. Patients saw improvements in quality of life, food security, and blood pressure within this timeframe, and hospitalizations were measured over a 90-day period. However, the study didn’t follow patients after the program ended, so it’s unclear how long benefits last. To maintain benefits, you would likely need to continue eating traditional foods in a heart-healthy way after the formal program ends. Talk to your doctor about creating a long-term plan
Frequently Asked Questions
Can traditional Native American foods help with heart failure?
Research shows that medically tailored traditional Navajo meals reduced hospitalizations by 28% in a 2026 study of 206 heart failure patients. Traditional foods prepared in heart-healthy ways can be as effective as standard dietary advice while being more culturally meaningful and sustainable
How long does it take to see benefits from eating traditional foods for heart health?
The MUTTON-HF study showed improvements in quality of life, food security, and blood pressure within 8 weeks. Hospitalizations were measured over 90 days. Benefits appear relatively quickly, though long-term effects beyond 12 weeks weren’t studied
What specific traditional Navajo foods help with heart failure?
The study used traditional Navajo recipes adapted for heart health, though specific foods weren’t detailed in the abstract. The program was designed by Navajo community members working with doctors to ensure foods were both culturally appropriate and medically beneficial for the heart
Is a traditional food meal program safe for people with heart failure?
The MUTTON-HF trial found adverse events were uncommon in both the meal program group and standard care group, indicating the traditional food intervention was safe. Patients should still work with their healthcare team to ensure meals fit their specific medical needs
Does this research apply to Indigenous groups other than Navajo Nation?
This study was conducted specifically with Navajo Nation patients, so results may not directly apply to other Indigenous communities. However, the principle that culturally tailored, traditional foods support heart health likely applies broadly to other Native American groups
Want to Apply This Research?
- Track weekly hospital or emergency room visits (should be zero), blood pressure readings at home, and daily food security status (whether you had enough healthy food to eat). Use the app to log traditional meals consumed and rate your energy and quality of life on a 1-10 scale
- Use the app to receive weekly traditional Navajo recipes adapted for heart health, set reminders to prepare meals, and log which traditional foods you’re eating. Create a shopping list feature that helps you find traditional ingredients at local markets or through community resources
- Set up monthly check-ins to review trends in blood pressure, hospitalizations, and food security. Create alerts if blood pressure rises or if you report food insecurity, triggering outreach to your healthcare team. Track adherence to the meal program and correlate it with health outcomes to show users the connection between eating traditional foods and staying healthy
This research summary is for educational purposes and should not replace professional medical advice. The MUTTON-HF study was conducted specifically with Navajo Nation patients with heart failure; results may not apply to all populations. If you have heart failure, work with your healthcare provider before making significant dietary changes. This study lasted 12 weeks, so long-term effects beyond this timeframe are unknown. Always consult your doctor or a registered dietitian before starting any new meal program or making major changes to your diet, especially if you take medications that interact with food or have other medical conditions.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.