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.
Nuts (5 to 7 grams per  cup serving): Peanuts, almonds, cashews and other nuts are all fantastic sources of meat-free protein. Because theyre rich in healthy fats and omega-3s, nuts are great for suppressing hunger. Tofu (10 grams per  cup serving):