The basic idea
Most stomach problems on trips come from a small number of causes: unsafe water, food that has been kept warm or unrefrigerated for too long, and unwashed hands. None of these are unique to Mongolia, but they matter more when the nearest clinic may be many hours away. A few steady habits go a long way. This article offers general, common-sense advice only and is not medical guidance. Talk to a doctor or travel clinic well before departure, and consult official health advisories for current recommendations.
Water
Treat tap water as something to avoid drinking unless a trusted source says otherwise. Many travelers stick to sealed bottled water in towns and use a reliable method of treating water elsewhere, such as a filter or purification tablets, depending on the advice they have received. In the countryside, water often comes from wells, rivers or springs, and its safety can vary.
Some practical points:
- Carry more water than you think you need on long drives, since stops can be far apart.
- Check that bottled water has an intact seal.
- Be cautious with ice and with fruit or salad that may have been rinsed in untreated water.
- Brush your teeth with water you would be comfortable drinking.
Hot drinks that have been properly boiled, including tea, are generally a lower-risk choice, though you should still use judgment about how they were prepared.
Meat and cooked food
Meat is central to the traditional diet, and in a herder family’s home it is often boiled or steamed. As a general rule, food that is served piping hot and freshly cooked is a safer bet than food that has sat out. Meat should be thoroughly cooked, and you can politely leave anything that looks undercooked or has been sitting around. Visitors curious about the main styles of cooking can read about traditional dishes and khorkhog cooking, which uses hot stones, but the same principle applies everywhere: well cooked, served hot.
Street stalls and small cafes can be perfectly fine, and many travelers eat at them. A useful rule of thumb is to choose places that are busy with local customers and where food is cooked to order. If a place looks unclean or the food has obviously been waiting, move on.
Dairy and fermented drinks
Milk products are everywhere in summer, and the range of dairy products is one of the pleasures of the trip. Some are fermented, dried or cooked, and others are fresh and unpasteurized. Travelers with sensitive stomachs, pregnant women, young children and anyone with a weakened immune system should be especially careful and ask a doctor in advance. Fermented mare milk is a well-known drink that visitors are often offered; it is fine to take a small taste out of politeness and leave the rest, and no one should feel pressured to finish it. Salty milk tea is offered more widely and is usually boiled, though it is still reasonable to follow your own comfort level.
Hands, utensils and everyday hygiene
Clean hands are among the most effective protections. Carry hand sanitizer and wet wipes, and use them before eating, especially after toilet stops in places with no running water. Many rural settings have no sink, so a small bottle of water and soap or sanitizer in your daypack is useful. Use your own cup or bowl if you are unsure about washing standards, and avoid sharing utensils when you can do so politely.
Dealing with an upset stomach
Mild digestive upsets are common among travelers. Resting, staying hydrated and eating bland foods usually helps, and oral rehydration salts are a standard item in many travel kits. Severe symptoms, persistent vomiting, blood in stool, high fever or signs of dehydration need prompt medical attention. Because help can be far away, tell your driver or guide early rather than waiting until you feel worse, and keep your insurance details handy.
Beyond food
General travel health also covers sun and altitude exposure, cold, long hours in vehicles and any prescription medicines you rely on. Pack a basic first-aid kit, bring enough of your regular medication for the whole trip plus spare days, and keep it in its original packaging. For a broader view, see the site’s material on travel health, and remember that rules about vaccines and health requirements change, so check official sources close to your departure date.
A realistic mindset
You do not need to be anxious about every meal. Hosts in Mongolia are generous, and accepting hospitality is part of the experience. Being sensible, eating mostly hot cooked food, drinking safe water and washing your hands will cover most of the risk. Outcomes are never certain, so insurance and a clear plan for reaching help are part of being prepared.