Following low-sodium diet helps control high blood pressure, edema and decrease breathing difficulties, however, seriously ill patients who are immunocompromised and /or have altered flora may be unable to adequately resist microorganisms introduced via enteral feeding. (12). Fats stimulate the gall bladder and liver to release bile, and the breaking down of the protein is a putrefying process which exposes the sores, ulcers, and inflamed areas of intestinal tract to further irritation, may potentially serve as opportunistic pathogens in the GI tract, producing diarrhea.(13).Any diary products have a protein that is very difficult for the human digestive system of Dawn syndrome child with cognitive disabilities especially milk and ice cream ,are one of the major offending factors in inflammatory bowel disorders.(14). While Low pH of the stomach and decreased thyroid hormone among Dawn syndrome children with congenital heart defects as well as small diameter of the oral cavity, low salivary secretions and small structure of the teeth, it consider as a resk factors for constipation (15). Also.CCU patients after heart surgeries often receive antibiotics that may alter the normal bowel flora leading to bacterial over growth, bacterial entry into the small intestine .(16). Functions of