Inflammation of the lungs and bronchial tubes are also common causes of shortness of breath, as is injury to the respiratory tract caused by smoking or other toxins. Shortness of breath may occur with injury to the lungs, such as a collapsed lung (pneumothorax).
In the United States, pea soup without qualification usually means a perfectly smooth puree. Split Pea Soup is a slightly thinner soup with visible peas, pieces of ham or other pork, and vegetables (most commonly carrots) and is usually made from dried, green split peas.
Lentils and split peas each contain about 244 calories per cup. Split peas have 17 grams of protein, compared to lentils' 19 grams of protein. Both of these foods are high in fiber, which promotes good digestive health and cholesterol control. Peas have 6 grams of fiber, less than the almost 9 grams provided by lentils. If you are a vegetarian or vegan, lentils provide 7 milligrams of iron, while split peas only have 2.7 milligrams. Both foods are beneficial sources of potassium, with split peas providing 750 milligrams and lentils 772 milligrams per 1 cup.