1 This condition is caused by malfunctioning of the stomach muscles; and is treated with medication to stimulate the muscles. 2  Celiac disease or gluten intolerance is another common digestive system disease. 3  It is a type of autoimmune disease that affects the small intestine.ommon Digestive Diseases. As mentioned above, the organs of the digestive system may develop different medical conditions. While some of them affect a particular organ or a part of that organ, some others affect more than one organ of the system.
Fish oil, omega-3: A class of fatty acids found in fish oils, especially from salmon and other cold-water fish, that acts to lower the levels of cholesterol and LDL (low-density lipoproteins) in the blood. Omega-3 fish oil is therefore thought to be a neutraceutical, a food that provides health benefits.
The omega-3, omega-6 and omega-9 fatty acids in fish oil keep cells and nerves working and lower your risk for developing cardiovascular disease. Omega-3 and omega-6 must come from fish or fish oil supplements, but omega-9 is not an essential part of your diet because it's synthesized by your body. The omega-3 fatty acids youâll get from fish oil -- eicosapentaenoic acid, or EPA, and docosahexaenoic acid, or DHA -- are healthy polyunsaturated fats. In addition to their role in the structure and function of cells throughout your body, the omega-3s reduce your risk of cardiovascular disease through multiple actions.