A new study from the Washington University School of Medicine in St. Louis shows that moderate weight loss in obese people may improve their heart function.

It found that moderate weight loss in obese people improves four important measures of heart and vascular health. The improvements in cardiovascular health included reduced thickness of the carotid artery walls, lower heart muscle thickness, and improved pumping and relaxation of the heart.

During the study period, participants lost an average of 9 pounds. The study also found that even after they had regained some of the weight they had lost, they continued to enjoy improved cardiovascular health.

This means that losing 10-20 pounds can reduce the risk of heart failure for the obese.