If you travel on your own and do not join a group, you usually do not choose some foods in addition to considering the so-called local specialties when you dine in a hotel.
For example, soy products, because soy products are made by fermentation. The time is longer, from the beginning to the time to the cooking, has been fermenting, some fried may be a little better, fermented food is difficult to say whether it will produce some harmful substances, so do not eat soy products.
Second, do not eat fish, although some fish are fresh, fresh live fish slaughtered and cooked later, is a basic requirement. But there are also some that inevitably don't know if it's still fresh, so. To be on the safe side, I still don't usually eat fish products. The restaurants in the city are different.
Third, do not eat wild wild vegetables, although some wild vegetables are not very harmful, but the amount of toxicity is related to cooking, if it is a smaller restaurant, when there are fewer guests, generally do not eat such wild vegetables. Therefore, you can eat more vegetarian dishes when you travel, and you can bring some meat, beef jerky, meat floss, or canned products, which can be stored for a certain period of time, and it can be safe to use fresh, so it is much safer and more reliable.