Background: In patients with heart failure (HF), malnutrition and dietary sodium excess are common and may worsen outcomes. No prior studies have provided low-sodium, nutritionally-complete meals following HF hospitalization. Methods and Results: The Geriatric OUt-of-hospital Randomized MEal Trial in Heart Failure (GOURMET-HF) study randomized patients discharged from HF hospitalization to four weeks of home-delivered sodium-restricted Dietary Approaches to Stop Hypertension meals (DASH/SRD; 1,500 mg sodium/day) vs. usual care. The primary outcome was the between-group change in the Kansas City Cardiomyopathy Questionnaire (KCCQ) Summary Score from discharge to four weeks post-discharge. Additional outcomes included changes in the KCCQ Clinical Summary Score and cardiac biomarkers. All patients were followed 12 weeks for death/all-cause readmission and potential diet-related adverse events (symptomatic hypotension, hyperkalemia, acute kidney injury). 66 patients were randomized 1:1 at discharge to DASH/SRD vs. usual care (age 71±8 years, 30% female, ejection fraction 39±18%). The KCCQ Summary Score increased similarly between groups (DASH/SRD 46±23 to 59±20 vs. usual care 43±19 to 53±24, p=0.38) but the KCCQ Clinical Summary Score increase tended to be greater in DASH/SRD participants (47±22 to 65±19 vs. 45±20 to 55±26, p=0.053). Potentially diet-related adverse events were uncommon; 30-day HF readmissions (11% vs. 27%, p=0.06) and days rehospitalized within that timeframe (17 vs. 55, p=0.055) trended lower in DASH/SRD participants. Conclusions: Home-delivered DASH/SRD following HF hospitalization appeared safe in selected patients, and had directionally favorable effects on HF clinical status and 30-day readmissions. Larger studies are warranted to clarify the effects of post-discharge nutritional support in patients with HF. Clinical Trial Registration: https://clinicaltrials.gov/ct2/show/NCT02148679

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