Updated

Urolithin A, a compound the body can produce after eating pomegranates, walnuts, and certain berries, improved measures of heart function by up to 80% in animal models of a hard-to-treat form of heart failure. It helped relax stiff heart tissue, reduced scarring and abnormal enlargement, and also improved relaxation in engineered human heart tissue. Researchers say the results point to a potential new therapeutic avenue for treating diastolic heart failure, though human trials are still needed.