DASH Diet in Heart Failure Outpatients (DASH-HF)

DASH Diet in Heart Failure Pilot Study - Integration and Effectiveness of Medical Nutrition Therapy Counseling on DASH Diet in the Management of Heart Failure Patients in an Academic Outpatient Cardiology Clinic

The purpose of this study is to refine the classification of the effectiveness of the DASH diet for outpatient heart failure (HF) management, using behavioral, clinical, and laboratory correlative science approaches.

The overall objective of this pilot study is to refine the classification of the effectiveness of the DASH diet for outpatient HF management using behavioral, clinical, and laboratory correlative science approaches. The investigators will integrate the use and evaluation of DASH diet nutrition education in a clinical population using a pragmatic study approach. The investigators will assess dietary behavior change. The investigators will assess the medical effectiveness of the DASH diet to improve patient symptomology and clinical biomarkers. Exploratory investigations will involve metabolomics analyses of plasma samples for biomarker discovery of clinical phenotypes in HF patients, to characterize metabolic profiles related to dietary exposure.

Subjects will receive the active intervention of nutrition education and medical nutrition therapy counseling for dietary and behavioral lifestyle changes. The focus will be on DASH diet implementation and adherence for management of heart failure. The subjects will have 4 study visits with a Registered Dietitian over 6 months (visits at 1, 2, 3, and 6 months). Outcome measures will be assessed at baseline, 3 and 6 months.

Dietary intake assessed by calculation of DASH diet score (Dietary Approaches to Stop Hypertension diet score). Minimum to Maximum values: 8-40 Higher scores mean better outcome and diet composition.

Dietary intake assessed by calculation of DASH diet score (Dietary Approaches to Stop Hypertension diet score). Minimum to Maximum values: 8-40 Higher scores mean better outcome and diet composition.

Dietary intake assessed by calculation of DASH diet score (Dietary Approaches to Stop Hypertension diet score). Minimum to Maximum values: 8-40 Higher scores mean better outcome and diet composition.

Kansas City Cardiomyopathy Questionnaire (KCCQ) will assess patient report of symptoms. Minimum to Maximum values: 0-100. Higher scores represent better outcome.

Kansas City Cardiomyopathy Questionnaire (KCCQ) will assess patient report of symptoms. Minimum to Maximum values: 0-100. Higher scores represent better outcome.

Kansas City Cardiomyopathy Questionnaire (KCCQ) will assess patient report of symptoms. Minimum to Maximum values: 0-100. Higher scores represent better outcome.

Eating Habits Questionnaire will assess patient report of self efficacy for behavior change around DASH diet eating habits. Minimum to Maximum values:27-135. Higher value is better outcome.

Eating Habits Questionnaire will assess patient report of self efficacy for behavior change around DASH diet eating habits. Minimum to Maximum values:27-135. Higher value is better outcome.

Eating Habits Questionnaire will assess patient report of self efficacy for behavior change around DASH diet eating habits. Minimum to Maximum values:27-135. Higher value is better outcome.

Inclusion Criteria: Heart Failure diagnosis Guideline directed medical therapy optimization on stable regimen at least 30 days Exclusion Criteria: BMI < 18/5 kg/m squared cardiac cachexia end-stage renal disease or dialysis acute inflammatory condition uncontrolled arrhythmias or ischemia status post heart transplant or implanted left ventricular assist device