Unsaturated Fatty Acids Enriched-diet to Improve Cardiorespiratory Fitness, Metabolic Flexibility and Glucose Tolerance in Obese Patients
United States16 participantsStarted 2017-10-23
Plain-language summary
The investigators hypothesize that a dietary intervention aimed at increasing unsaturated fatty acids (UFA) consumption is feasible and has the potential to improve cardiorespiratory fitness, metabolic flexibility and glucose tolerance in symptomatic obese heart failure with preserved ejection fraction (HFpEF) patients.
Who can participate
Age range18 Years
SexALL
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Major Inclusion Criteria:
* Body Mass Index (BMI) ≥30 kg/m2 (obesity) or total body fat percentage \>25% in men and \>35% in women
* A confirmed clinical diagnosis of stable HF (New York Heart Association \[NYHA\] class II-III) on maximally tolerated heart failure (HF) optimal medical regimen (without major changes in the prior month)
* Left Ventricular Ejection Fraction (LVEF)\>50% documented in the prior 12 months
Major Exclusion Criteria:
* Concomitant conditions or treatment which would affect completion or interpretation of the study (i.e.,physical inability to walk or run on treadmill);
* Significant ischemic heart disease, angina, uncontrolled arterial hypertension, atrial fibrillation, moderate to severe valvular disease, chronic pulmonary disease, anemia (Hemoglobin\<10 g/dL)
* Electrocardiography (ECG) changes (ischemia or arrhythmias) that limit maximum exertion during cardiopulmonary exercise test
* Comorbidity limiting survival
* Stage IV-V kidney disease (estimated Glomerular Filtration Rate\<30)
* Fluid overload
* Pregnancy
* Current use of unsaturated fatty acids (UFA) supplement (i.e., omega-3).
* Inability to give informed consent