Pomegranates and Urolithin A for Heart Failure Treatment

Recent scientific research published on August 19, 2026, by a team at King's College London reveals that urolithin A, a natural compound produced by the body after consuming pomegranates, walnuts, and certain berries, can improve heart function by up to 80 percent in experimental models of heart failure with preserved ejection fraction (HFpEF). The researchers found that urolithin A acts on a specific protein called PKGIalpha, activating a relaxation pathway that helps stiff heart muscle tissue relax and fill with blood more effectively between beats while also reducing cardiac fibrosis and cellular enlargement. Affecting nearly half a million people in the UK and accounting for roughly half of all global heart failure cases, HFpEF currently has very limited treatment options because conventional therapies primarily target pumping ability rather than the stiffness that prevents proper refilling. Although these findings demonstrate remarkable improvements in animal models and engineered human heart tissue grown from stem cells, clinical trials involving human patients are still required to confirm efficacy and safety before dietary or pharmaceutical interventions can be formally prescribed for heart failure treatment.