Reviewed by Dietitian Madeline Peck, RDN, CDN Credit: Design elements: Getty Images. EatingWell design. Key Points Swapping saturated fats for avocado may improve cholesterol and lower cardiovascular disease risk. Avocados provide heart-healthy monounsaturated fats, fiber, potassium and antioxidants. Other heart-healthy foods include nuts, edamame and fatty fish. Avocados are beloved kitchen staples that provide a…