1 Colitis: Inflammation of the colon. Inflammatory bowel disease or infections are the most common causes.  Diverticulosis: Small weak areas in the colon's muscular wall allow the colon's lining to protrude through, forming tiny pouches called diverticuli.
Dark green leafy vegetables are great sources of nutrition. Salad greens, kale and spinach are rich in vitamins A, C, E and K, and broccoli, bok choy and mustard are also rich in many of the B-vitamins.he vitamin K contents of dark green leafy vegetables provide a number of health benefits including: protecting bones from osteoporosis and helping to prevent against inflammatory diseases. Because of their high content of antioxidants, green leafy vegetables may be one of the best cancer-preventing foods.
Dark green vegetables include broccoli, spinach, kale and other leafy greens. Starchy vegetables, such as corn, potatoes and fresh green peas, are high in complex carbohydrates and digest more slowly. The red and orange subgroup includes carrots, red peppers, tomatoes and other vegetables high in certain carotenoids. A fourth subgroup, called beans and peas, includes lentils and dried legumes.