2. Diet
When you travel, you don’t eat the same as you do at home. Many people eat much faster, eat more, and eat foods that they don’t normally eat. If you are traveling to different parts of the world, you may be introduced to a variety of different foods that you have never had before. When your body isn’t used to eating something, it may digest it differently.
Certain foods can cause diarrhea, or your body may treat them differently since they are new. The more you eat these foods, the less likely you are to suffer from diarrhea. If you are just trying them for the first time though, it’s not abnormal to suffer from diarrhea while your body learns how to digest them properly.
Many people also eat foods that are not as good quality as they normally eat when they travel. This may include junk food or fast food since many people are in a hurry while traveling and don’t have time to enjoy sit-down meals at better quality restaurants.