It totally depends on you eating habits , if you are a health freak then eating street food will give you some stomach prob and if you are a foodie like i am then go for exploring local , it has lot of advantages ,helps the local ,you get fresh food and you get to know the food culture.
Try to eat simple food. non oily, less spices. salad, juices, fruits, coconut water, lots of water. glucose. try street food if digestion system good. try local food but it's not healthy then just taste it don't over eat