I've found across the whole of Asia, its perfectly safe to eat in independent restaurants, from hole-in-the wall places, street stalls and even old women frying chicken using portable burners on pavements in Indonesia.

I've always gone to places that are popular with locals - think about it, they wouldn't be popular if they gave customers the raging shits.

I can only assume that this holds true across other parts of the world. You don't make money without returning customers.