Here’s what to know.Reviewed by Dietitian Katey Davidson, M.Sc.FN, RD, CPTCredit: Getty Images. EatingWell Design.Key PointsEating more fruits, veggies, legumes and whole grains may lower heart failure risk.Adding healthy foods was linked to lower odds of heart failure in a 20-year study.Small changes, like swapping refined grains for whole, can benefit heart health.Heart failure affects more than 6 million Americans and is one of the leading ca…