I have also been going to Cancun since 1986/87 and would have to really disagree with you regarding not eating at Mexican establishments. Why on earth would you go to Cancun and not enjoy the culture, which in most places begins with food! My children, grandchildren and numerous friends have come to stay with me in Cancun over the years and no one has ever been sick. My son and a couple of his friends maybe, from over-indulging in alcoholic beverages and too much sun, but definitely not from Mexican restaurants or food. Please go to Cancun, but enjoy what these people have to offer both in the way of food, restaurants and their ancient culture.