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MIND Diet Plus Forest Bathing Shows Promise for Blood Pressure and Brain Health

Combining Mediterranean-DASH diet with nature therapy targets hypertension and cognitive decline in older adults.

Saturday, March 28, 2026 0 views
Published in ClinicalTrials.gov
Clinical trial visualization: MIND Diet Plus Forest Bathing Shows Promise for Blood Pressure and Brain Health

Summary

Researchers tested whether combining the MIND diet with forest bathing could improve blood pressure and brain health in adults over 50 with hypertension. The MIND diet blends Mediterranean and DASH eating patterns, emphasizing brain-healthy foods like leafy greens, berries, and fish. Forest bathing involves mindful time in nature to activate the parasympathetic nervous system and reduce stress. This three-arm study compared MIND diet alone, MIND plus forest bathing, and usual care in 48 Hong Kong participants over 12 weeks. Researchers measured blood pressure, cognitive function, body composition, and lipid levels at baseline, 4 weeks, and 12 weeks. The trial represents the first investigation of this combined approach for cardiovascular and neurological health in older adults with high blood pressure.

Detailed Summary

This groundbreaking study investigated whether combining the MIND diet with forest bathing could address two major health concerns in aging: hypertension and cognitive decline. The research targeted adults over 50 with stage 1 or 2 hypertension, a population at increased risk for cardiovascular disease and dementia.

The trial employed a three-arm randomized controlled design comparing MIND diet alone, MIND diet plus forest bathing, and usual care as control. The MIND diet strategically combines Mediterranean and DASH dietary patterns, emphasizing foods specifically linked to brain health like leafy greens, berries, nuts, and fish. Forest bathing, a therapeutic practice involving mindful immersion in nature, was added to potentially enhance stress reduction and parasympathetic nervous system activation.

Forty-eight Hong Kong Chinese adults participated in this 12-week intervention. Researchers measured systolic blood pressure as the primary outcome, with secondary measures including lipid panels, cognitive function tests, and body composition metrics. Data collection occurred at baseline, after 4 weeks of face-to-face intervention, and at 12-week completion. The study also included qualitative focus groups to understand barriers and facilitators to adopting these lifestyle interventions.

This completed trial represents the first scientific investigation of combining dietary and nature-based interventions for cardiovascular and cognitive health. The research addresses the growing need for non-pharmaceutical approaches to managing hypertension while simultaneously supporting brain health in aging populations. Results could inform integrative treatment strategies that leverage both nutritional science and environmental therapy for comprehensive health optimization in older adults.

Key Findings

  • First study combining MIND diet with forest bathing for hypertension and cognitive health
  • Three-arm design compared MIND diet alone versus MIND plus nature therapy versus control
  • Targeted adults over 50 with stage 1-2 hypertension over 12 weeks
  • Measured blood pressure, cognitive function, and metabolic markers
  • Included qualitative analysis of intervention adherence barriers and facilitators

Methodology

Three-arm randomized controlled trial with 48 participants over 12 weeks. Included both quantitative outcome measures and qualitative focus group interviews. Data collected at baseline, 4 weeks, and 12 weeks with face-to-face intervention delivery.

Study Limitations

Small sample size of 48 participants limits generalizability. Study focused specifically on Hong Kong Chinese adults, which may not translate to other populations. Short 12-week duration may not capture long-term adherence or sustained health benefits.

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