Usually the tourist does not like to take the risk as far as food is concerned, due to the origin and the consequences that could have.
Tourists don’t know that in Ecuador they can have a full lunch for $ 3 including soup, a main course and a drink.
Now, not because having a low cost means it is dangerous. It is important to recognize the area and level of health, I believe that a local guide can provide information necessary to cover this aspect.
Having been abroad, I also found a very important difference, depending on the seriousness, many pharmacies can provide medicine without the need of medical assistance. For example, a stomach pain, to calm the pain one explains to the seller and with that can reduce the risk until finding an adequate attention, obviously we know that it is not advisable to self-medicate but it is important to know that the possibility exists. What would happen if you are in a single place and you need to eat, attend, pharmacies, police stations, firemen, etc.
Google is for me a great tool, even in the work it helps me a lot to locate clients in my city that is relatively small compared to the great powers, nevertheless it is still complicated for me to find them despite being years living here.
In short, Google satisfies all my needs, unfortunately the last update was quite a lot but it does not leave aside the great utility for people.