Some common food substances have proven remarkably useful against diarrhea. Carob powder In a Canadian study of 230 infants with diarrhea only three were not cured separately addition of carob 'powder to their formula. The treatment apparently worked because carob contains high levels of fibre which, as recent research has shown, can solve digestive problems including diarrhea. Apple cider vinegar For a precaution start taking a teaspoon of vinegar and a teaspoon of honey in a glass of water half an hour before each meal a few days before your trip. Continue this regimen during your trip. Yogurt This seems to be beneficial in maintaining or restoring the health of the intestinal tract. 'In many countries along the Mediterranean Sea and in the Balkans, yogurt has been used for years as a remedy for infantile diarrhea . The three doctors fed yogurt to half of a group of children hospitalized with severe diarrhea. Those in the yogurt group ate a little less ...