To reduce the risk of foodborne illness, many travelers follow a simple guideline: “boil it, cook it, peel it, or leave it,” preferring food that has been thoroughly heated and fruits or vegetables they can peel themselves. Drinking factory‑sealed bottled water or properly boiled water is common practice in places where tap water may be unsafe, and some people also avoid ice cubes unless they are confident the ice is made from treated water. Salads, raw shellfish, undercooked meats, and unpasteurized dairy products are often recognized as higher‑risk items, especially where refrigeration or hygiene standards are inconsistent. Regular and thorough handwashing, or using alcohol‑based hand sanitizer before eating and after using public facilities, is a very effective preventive step that costs little and has almost no downside. Many travelers pack a small “stomach kit” with oral rehydration salts, anti‑diarrheal medicine, and possibly a probiotic, so if mild symptoms develop, they can start managing them quickly without immediately needing a pharmacy. When trying street food, people often look for stands with long lines of local customers, clean cooking areas, and food being cooked to order rather than sitting in the open for long periods.