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.
Healthy in between meal snacks may include 1  â. Canned seafood (sardines, salmon, mackerel, crab meat or tuna) â one small can mixed with the juice of Â½ a fresh lemon or 1 Tbsp of natural yoghurt and fresh chopped herbs. 2  A protein smoothie made with coconut milk or almond milk and 3 tablespoons fresh or frozen berries.