Diarrhea is a common ailment that people get when their body does not like a certain food or ingredient in the food. In most cases, the food may be spoiled or not fresh. The system will flush out the food naturally. That may be why many people who experience diarrhea will feel thirsty afterwards. One way to prevent diarrhea is by eating healthy and fresh foods. Eating these foods will agree with your body’s systems. It would have no reason to flush anything out. Another way is to eat foods that you are familiar with.
If you travel, you will need to analyze the foods and water before you ingest those. Drinking plenty of bottled water will help because sometimes countries have dirty water.