@umbra21 - You should take precautions of course, but don't let it get in the way of living life. One of my favorite things to do while traveling is eat street food (which is often cooked in hot oil and so relatively safe) and I know people who won't eat it because they're afraid of food poisoning.
I feel like I've just conditioned my stomach to be fairly happy no matter what. Yes, sometimes I get sick, but it only lasts a day or two. I'm not advocating being an idiot about food, but don't live your life in fear either.