The purpose of this multi-center clinical trial is to study the efficacy and safety of providing nutritional support added to the study-defined standard of care which consists of standardized dietary education and a single dietary counseling session shortly after discharge, versus study-defined standard of care alone.

Inclusion Criteria:

• aged 60 years
• Veterans enrolled in a VHA facility
• Hospitalized ( 24 hours) with new HF or worsening chronic HF
• Dentition, swallowing function, etc. sufficient to safely consume food and liquid of standard composition and texture (i.e., no pureed food, no thickened liquids needed)
• Able and willing to provide informed consent and perform study activities

Exclusion Criteria:

• Food allergies or intolerances that cannot be accommodated by study diet
• On dialysis or estimated glomerular filtration rate <30 at randomization
• Serum potassium (non-hemolyzed) >6.0 mmol/L during index hospitalization
• Heart transplant or active transplant listing
• Left ventricular assist device present or anticipated <6 months
• Malignancy or other non-cardiac condition limiting life expectancy to <12 months
• Planned admission to a skilled nursing facility following hospital discharge, or discharge to other location/situation where Veteran does not have control over diet
• Lack of space to store food for a week or equipment to prepare food
• Severe cognitive impairment (SLUMS score <20, or <19 if less than high school education completed)
• Severe food insecurity (5 or 6 points on the USDA 6-item Food Insecurity Screen)
• Body mass index >50 kg/m2
• Other medical, psychiatric, behavioral, or logistical condition which, in the clinical judgement of the site investigator, makes it unlikely the patient can effectively participate in or complete the study

Digital data underlying primary scientific publications from this study will be held as part of a data sharing resource maintained by the Cooperative Studies Program (VA-CSP). These data may be available to the public and other VA and non-VA researchers under certain conditions and consistent with the informed consent and CSP policy which prioritize protecting subjects' privacy and confidentiality to the fullest extent possible

Due to the nature of the intervention, participants, dietitians, and site coordinators can't be blinded. However, the investigators and outcome assessors will be blinded