Summer is in full swing, and for many, that means it’s time to hit the road. Whether you’re on a quick weekend jaunt or a multi-week tour of Europe, there are some things to consider: did you pack sunscreen? A phone charger? And how are you going to take care of your stomach?

“Patients have troubles with stomach issues when they travel because they are exposed to unfamiliar food and water sources, differences in local hygiene and sanitation and changes in routine,” says Dr Franjo Vladic, a gastroenterologist at the Cleveland Clinic.

Many of these problems arise as the result of travelers “not taking logical precautions”, says Dr Michael Camilleri, gastroenterologist