1 The right side of the heart receives oxygen-poor blood from body tissues and pumps it to the lungs where it picks up oxygen and gets rid of carbon dioxide. 2  The blood vessels that carry blood to and from the lungs form the pulmonary circuit.
According to the Dietary Guidelines for Americans 2015-2020, a healthy eating plan: 1  Emphasizes fruits, vegetables, whole grains, and fat-free or low-fat milk and milk products. 2  Includes lean meats, poultry, fish, beans, eggs, and nuts. 3  Is low in saturated fats, trans fats, cholesterol, salt (sodium), and added sugars.
Try to eat a diet comprised of 30% healthy carbs, 20% each of fruits and vegetables, 10% each of dairy and meat, and as little fat and sugar as possible. 1  Healthy carbs include rye, quinoa, oatmeal, brown rice, and other nutrient-rich grains. 2  When fitting fruits and vegetables in your diet, make smart choices.