Out of three trips to Roatan I have gotten sick from the food on two of the trips, out of three trips to Cozumel I have gotten sick twice. I can't seem to get over this "little" problem. I have tried all the things mentioned in the above posts too! I just must be sensitive to it. Last time I had taken 4 imodium, and no sign of it letting up, even on the flight home. I had to laugh at the hyperlink to GI illnesses, as it said that ID is rarely life threatening. I can speak from experience here folks, it may not be life threatening, but you sure wish someone would kill you at the time.